View Full Version : new xB owners...please post your MPG stats here


gt1948
05-11-2007, 01:48 AM
Post mpg here please

johnz
05-11-2007, 02:39 AM
24-26 xb rs2 automatic
I have a lead foot!

Big_Bird
05-11-2007, 02:44 AM
^^lol, he wants the milage from the new gen 2 xB's, not the gen 1 xB's

OldYeller
05-11-2007, 06:41 AM
24-26 xb rs2 automatic
I have a lead foot!

That is horrible--you must be doing stop and go. I get over 30 every time going 80 MPH. Interesting to see what the xB2's will get in reality..........

superboxcarxb
05-11-2007, 07:43 AM
i get 26-28 on the daily. And yeah, we have terrible traffic here everyday. So that's really good i guess.

gt1948
05-11-2007, 02:10 PM
New xB's only Please......

thx

gt1948
05-11-2007, 02:10 PM
New xB's only Please......

thx

techgeekwill
05-21-2007, 06:43 PM
So far with 260 miles, I've been getting 28. That's mixed City/HWY.

XBFred
05-21-2007, 06:59 PM
I suck at getting good gas mileage. 1st tank was 19avg and second is 22. We will see when I calm down. But I drive 5 miles to work all city with lots of lights

gt1948
05-21-2007, 09:39 PM
round trip mem to stl.....30mpg avg
total miles hwy 600
mixed 250

BunnyBox
05-22-2007, 04:31 PM
I suck at getting good gas mileage. 1st tank was 19avg and second is 22. We will see when I calm down. But I drive 5 miles to work all city with lots of lights

I hear you. I drive 13miles each way to work all city. I got 22 on my first tank and looking at 23.5 on second. Hopefully it will get better. I have started to try to lift my lead foot a little.

XBFred
05-22-2007, 09:12 PM
Last tank was 21, was getting better but last night got on it several times and dropped the mileage.

SO now the question about the "trip computer"

it said I had 22 miles left, but when I filled up it only took 10.5 gallons. Does that mean the gauge doesn't read distance to empty, but distance to gas light going on?

roXor_boXor
05-27-2007, 09:20 PM
I drove my new (read not broken in) xB 185.5 miles yesterday. I would estimate the driving conditions as partially in town (I'd guess 20%) and partially on two lane highways (about 70% at mostly about 65 mph except for down to 35-40 for all the small towns) and the other 10% on a short run on I-90 of about twenty miles (@ 75 mph btw).

I was curious how the computer was going to stack up against a real fill-up check on the mileage. This morning I filled up with the computer saying I averaged 28.9 mpg. I had traveled 185.5 miles. It took 6.299 gallons to fill it up. That calculates to 29.44 for that trip. That put the computer about a half mile per gallon less than the true calculation. Pretty decent accuracy.

Based on my experience, I think a broken in 08 should be able do over 30mpg in the Interstate type driving.

I'm happy. It is bigger than my Mazda3 and it gets better gas mileage. :D

CraigMBA
05-28-2007, 07:24 AM
17.4mpg over 406 miles.

The car has seen like 40 miles of freeway driving. The rest of it is stop and go so cal grind.

roXor_boXor
05-28-2007, 10:46 AM
Craig did you reset the trip computer averages when you got the car?

I realize you are in the worst case scenario for mileage, but based on what I saw when I got mine, there was a lot of idling done before I got the car. It may not make any difference due to your adverse conditions, but you should reset anyway to be sure you know how that number got there. You might even do an actual calculation on fill-up when you can to see how the computer compares.

JohnathonSull
06-03-2007, 06:35 PM
I have 1400 miles on the car and I'm averaging 23.5 mpg. I was getting 26 till I put my wheels on.

08toaster
06-03-2007, 10:07 PM
first tank filled today, averaging 22.3 mpg...stop and go driving...i also was wondering about the trip computer too..i put in 10.5 gallons and it said i only had 25 miles left on the tank? even with 22mpg, i shouldve been able to get another 80 miles out of the 14 gallon t.ank

Malibu_Rapper
06-04-2007, 09:04 AM
My fuel computer is off by about 1 MPG according to my calculations. Last tank averaged around 26.5 and that was with 80 MPH highway and mixed city driving.

Regarding the trip computer's range calculation, I took a gamble a few weeks ago and drove about 45 miles no problem after it said I had 0 miles left. I was worrying about running out of gas the whole time. I think I filled up with about 13.5 gallons.

SLKNick
06-06-2007, 05:32 AM
The sticker said 20 to 28. But I am avg. about 24.7 at this time. I'v had the car since May 7th. Love it and I am glad I waited.

darrenf1
06-08-2007, 01:03 AM
Just passed over 1000 miles today. It has been creeping up from 27.5 to a peak of 28.9 with my normal driving, about 80 miles a day of mixed driving, 20% city, 60% back roads at about 50 mph and 20% highway, about 70 mph. I have been calculating based on the odometer and the amount of gas to fill it up. Today I reset the mpg calculator in the car on fill-up (it did display 28.9), and with 90 miles driven today, it read 34.8 at the end of the day. I am experimenting on this tank of gas using hyper-miling techniques I read about a couple of days ago. When I refuel sometime next week I'll let you know how it worked. By the way, I have the 5-speed.

ebfoxbat
06-08-2007, 06:17 PM
28 mpg on a tank of mostly 70 mph highway
32.5 mpg on a tank of 55 mph.

Those are calculated based on the odometer and gallons needed to fill (I always fill) the on-dash display was 2 mpg higher in both cases. I'm on the 3rd tank of gas now.

I also find my speedo to be 3-7 mph higher than actual speed. 3 mph is one thing but 7? This is based on side-of-road-speed-signs. I'll GPS it next week.

darrenf1
06-17-2007, 04:28 PM
Ok, Here's my update after a fill-up. I ran 411 miles on this tank, and it took 12.6 Gallons. That works out to 32.6 MPG. The computer read 33 MPG so it is a little optimistic. This tank saw zero Highway miles. Most of it was around town using hyper-miling techniques, though I did do about 10 miles of pure city stop and start driving normally with 4 people in the car. Looking forward to the next tank and seeing if I can break 35 MPG, that's what I used to get with my Gen 1.

XBFred
06-17-2007, 10:12 PM
I wish I was doing that good, didn't even get that one the highway

michaelbailey10
07-13-2007, 09:54 PM
I bought my NBM 2 weeks ago and went on a trip from Savannah, Ga to Clearwater, Fl and got a average of 29 mpg on the highway. In the city I have been getting 23 but, the traffic here in Clearwater sucks. Hopefully I will get better on base when I get home.

rayward
07-16-2007, 03:23 PM
28.7 mpg@ avg spd 72mph with 1100 miles on the od.

SimpleNature
07-21-2007, 06:31 AM
During the first 120 miles, I'm seeing 24mpg at 25mph average. There was a 20 miles of highway in there somewhere. Do these motors have a history of getting better when you reach complete break-in? I sure can't complain at 24... I'm more use to 9 and 10.

QuOkinthebox
07-22-2007, 03:43 PM
29.8 according to the car info center.
29.5 according to my math.
All this doing 75mph highway with maybe 30 miles in city.
Just got to 1k miles.

ExcelRevs
07-23-2007, 06:09 AM
i will be testing the miles per tank next week when i drive from San Francisco to Santa Barbara, and Los Angeles. I'll post stats when I get back.

cincinfocal
07-24-2007, 01:39 PM
curretnly the display shows 28.4 and its mostly suburbs driving...very little highway...

Kilo
07-30-2007, 06:32 PM
i am at 500 miles, iv had mine for about a week. I am at 25mpg avg. But i have been a little heavy on the gas peddle lately.. enjoying my new toy. and im about 50/50 city/highway in the DFW area

KevinTxB
08-02-2007, 05:32 AM
OK. Here's the deal. I have had my car for about 4 days now and I'm only getting around 19-22 mixed driving. That seems really low. Should I be concerned or is there some kind of "break in" period that I'm unaware of. I also do a good amount of freeway driving and only get a little over 100 on the first half of a full tank. There is only 300 miles on the car if that helps.

bensblueb
04-18-2008, 12:01 AM
The computer usually indicates 27.3 - 27.6 mpg in mixed city/highway driving. I've got an authomatic and I'm pretty easy on the peddle.

WhiteRhino
04-19-2008, 04:45 AM
24.9 Current avg

mnscionxb
04-21-2008, 02:40 AM
I just got back from my trip to ga. 1200 miles ave mph was 70 ave mpg 29 there and back.
mn to ga
0-20 amsoil

devastator
04-22-2008, 01:56 AM
omg i get 22 mpg hwy with 5 speed

i think theirs something wrong..

jpauletteUSAF
04-30-2008, 12:03 AM
I usually get 25 city/28 highway.

ScioXBox
04-30-2008, 03:22 AM
18.4 mpg last tank.. all city, lots of stop and go.

shinjakuroi
05-09-2008, 02:57 AM
I just hit 8k miles today, I've never reset my avg mpg guage. It shows 27.4, I would say about 90% of those miles are city.

Going by actual math with miles divided by gallons to fill I average about 25.8, I just went on a 400 mile trip today and averaged 32.6 using the actual math. I started the trip with a 27.3 on my avg meter, it went up to 27.4 during the drive. :-)

I had two adult males in the car and the a/c running the whole time. It was almost exactly 80 degrees the whole trip with high humidity and 8mph winds blowing the car around, also I live at almost sea level. We averaged 68mph on the trip dividing the trip time by the distance showing in my gps.

I know that may sound like way too much info but there may be someone who would like to know the conditions. I know 32.6 is the best I've ever gotten so I am glad to remember how I did it, if it was 45 degrees I think it might've done a little better as I'd not have had the a/c on and the air would be more dense and less humid as where I live there's never cold and humid at the same time.(Panama City, FL)

ravenfox
05-12-2008, 04:39 AM
My baby is one month old.. We just took a 2000 mile trip..600 miles on the ODO b4 the trip.. a little over 2600 miles now..\
Highway=31mpg (all Highway) did best between 65 & 75mph
city+highway= 27 combined (about 30% city)
City= I have no idea
Computer is dead-on to my figures...
I am very happy with these figures and look forward the them getting higher as the car gets older.. AJ

Hack
06-10-2008, 07:09 PM
i have 5 speed and getting 27 mpg mixed driving and slight heavy foot....car only has 500 miles....

Invertalon
06-10-2008, 07:19 PM
My mileage chart:


http://img185.imageshack.us/img185/8498/mileagein7.jpg

JambaJuice
06-17-2008, 07:16 PM
...dang my XB2 sucks for mileage in comparison to everyone else...

25.2 mpg was all it says overall avg on the display...I would say 50/50 driving...

...how in the world is everyone avg 28-30mpg???...

CIONIDE
06-17-2008, 07:33 PM
...how in the world is everyone avg 28-30mpg???...
By not driving on southern California freeways during rush hour. :rolling:

JambaJuice
06-17-2008, 07:45 PM
...ahhh...the great CIONIDE has spoken yet again :bow:

...LoL...totally hear you on that one

scrubby57
06-21-2008, 08:47 PM
The car just made over 5000 miles and my mpg is anywhere from 26-27. I average about 400 miles a week driving in the bay area. Lots of hills too.

xBWill
07-14-2008, 07:36 PM
I have been getting 28-30 MPG driving about 50/50 ciry highway. I did a long trip at going 60-65 mph and got 36 MPG. One thing to note is this MPG is not measured by the onboard computer which I have found to be about 8% higher then the actual milage except on the one long trip when the computer was dead accurate.

TX_WRX
07-14-2008, 08:04 PM
xBWill, are you doing any hyper miling or just driving smart? Obviously not driving normal :) Also how many miles you have on the car? I have noticed a lot of people suddently getting better mileage and wonder if the xB just has a real long break in time.

xBWill
07-17-2008, 03:46 PM
I am not hypermiling, just driving pretty normal I think. I don't floor it every time I accelerate but I do floor it a few times a tank going all the way to redline. The car has plenty of power to conserve on fuel and that's the habit I'm into. I did have a tank that was pretty rough, raced around a lot and so on. That one I got 27 mpg. I just had the TRD CAT and exhaust put on and seem to be getting better mpg with it. I am yet to fill up so hard to know for sure.

FamilyTuning
07-19-2008, 05:24 AM
We just clocked 1,000 miles on or 2009 xB. We have been getting ~24mpg in the city. On vacation (12 hours highway, loads of West Virginia mountain roads, and a little city) we averaged 33.7mpg.

jthistle
08-14-2008, 04:46 AM
35.5 mpg from my latest tank ( 316.9 miles on 8.926 gallons).

TX_WRX
08-14-2008, 01:14 PM
35.5 mpg from my latest tank ( 316.9 miles on 8.926 gallons).
what % city and hwy? AC on or not. Way to go with those high numbers.

jthistle
08-14-2008, 01:31 PM
87.5% highway, 12.5% city, reverse commute so no traffic, no AC. My previous best of 34.1 was under the same conditions. The gain is mostly due to the grill block I added.
http://img29.picoodle.com/img/img29/3/8/13/f_grillblockm_992c2f4.png
I monitor the coolant temp with my scangauge and the temp never exceeds 190 on my commute even on days when the outside temp is over 90. Besides if you look in your top grill you will see about 1" to 0.5" of the radiator sticking up, also you will see above the radiator there is a plastic backing which prevents air from escaping. This backing traps the air moving into the front of the car and causes drag. The grill block directs air around the car and eliminates the drag from the trapped air. The block is made from Coroplast (corrugated plastic), which cost me $30 for a 4'X8' sheet and black duct tape.

My previous best mpg was 34.1. So, the grill block gave me a 1.4 mpg gain.

I would not suggest doing a modification like this unless you have a scangauge or something similar to precisely measure your coolant temps.

srb219
08-16-2008, 10:58 AM
WOW very inventive!! I need better MPG but not going that far

TX_WRX
08-16-2008, 06:22 PM
how cool would it be if they had made the xB more fuel efficient with some of these improvements to begin with. if the xb was 200lbs less, and had a 2.0L making just slightly less hp, and had some aerodynamics tricks it would have been far more successful in the market. Personally i love the car but dont own one cause it really doesnt save me enough money on gas.

It would be cool to see if you could offer an after market hood where the middle is significantly lower for aerodynamics. Or have a pass through vent in the hood.

jthistle
08-17-2008, 04:27 AM
An under body pan is something OEMs could offer that would significantly improve the aerodynamics of a car and reduce fuel consumption. Rear wheel skirts have a significant impact. Designing a bumper that does not catch wind, the fake brake ducts on the xB are something that could have been designed out for efficiency. Smaller side mirros or cameras. Replacing the side mirrors with cameras would be a fun project. To see the effect of your mirrors drive around for a tank of gas with your passenger mirror turned in, the effect is noticeable. Internal radio antenna. Flush door handles. There are so many things that could be done to improve fuel efficiency. On the flip side all of these aerodynamic improvements also can help your car accelerate faster. The easier your car can go through the air the easier it is to accelerate.

srb219
08-17-2008, 08:40 AM
just think if we made all of these improvements and drop in the proven 1.8 motor . 35 MPG city 40 Highway easy

TX_WRX
08-17-2008, 06:37 PM
just think if we made all of these improvements and drop in the proven 1.8 motor . 35 MPG city 40 Highway easy

yep. Its just frustrating that Toyota keeps this 2.4L 4cylinder around still. as far as 4s go it really is a gas hog and not very performance minded either. The nissan altimas 2.5L makes 175hp/180lbft while getting 23/32 with a car that weighs more. The xB is in an annoying middle ground. I either want it to have a smaller engine with better mpgs, or i would rather it have the camry v6 and sacrifice only 1-2mpg more. For me it is the perfect car with the wrong engine.

jthistle
08-18-2008, 01:28 AM
Doesn't the Rumion get the 1.8?

buickid
08-18-2008, 03:25 AM
4AT getting 22MPG according to the computer. Manually computed results are about the same.

SiccMade
08-27-2008, 12:34 AM
My ave is City(24-26) Hwy(28-32)

jonnylighting
10-09-2008, 02:04 AM
I get 28-30 thats around town and hwy

srb219
10-09-2008, 03:16 PM
latest check was 29.7 combined. I do about 50/50 city/highway

alfundo
10-09-2008, 03:21 PM
When I was stock I was averaging 31 mpg. Now that I run softer Falkens my mpg has slipped to the 28-29 range. :(

cobb
10-15-2008, 06:06 AM
Good idea, bet it will warm up faster too in the winter. I use to block the radiator on my benz so it warmmed up faster and it had a temp meter to monitor. I never broke 40mpg in my xa til I lowered it with mainly highway driving and taking it to 3 grand before shifting. Short shifting can hurt fuel economy more than help. Basically you want to put the least load on the engine shifting no later than the peak rpm of the torque curve. First fill up 8 gallon at 221 mles, 27mpg, I flled tl the pump clcked off 3 tmes and now my gas needle is past full. The dealer just filled it tl it was on full. :(

I cant wat to get anotehr tank and a lp kit. I already bottom out off road where need to drive. Seems everything was tucked up under the xa even after lowered t 2 nches, the xb has some junk under the front area that hangs down.

Whats that in the lower grll, tranny cooler or lower portion of the ac condensor? Might not want to block that, however snce t has an electric fan it can suck in ar as needed and you could block both openings.

Wonder if manually shifting the auto helps fuel economy?


http://img29.picoodle.com/img/img29/3/8/13/f_grillblockm_992c2f4.png/

jthistle
10-15-2008, 03:51 PM
Whats that in the lower grll
That is the radiator. For the winter I am going to partially block the lower grill. I will probably leave a thin strip open. I have some sheet aluminum that I am going to bend to replace the coroplast. I just have not gotten around to making mounting blocks.

Since adding that grill block I usually get 32-33 mpg and my best is 35.5 mpg.

Future projects for my car include the revised grill block, an air dam, some under body sheeting to prevent air from being trapped in the rear bumper and smaller mirrors.

whartman77
10-15-2008, 11:27 PM
I am almost 90% around town driving, so with the staggered and only a typical 5-10 mile drive to anywhere I go I have been averaging 24 (according to the little average MPG meter).

cobb
10-16-2008, 02:53 AM
Dude, you are freakishly close to me, I go to va center commons. Infact I use to work at that sears tire america.

THe best way to tell fuel economy is to fill up til the pump clicks off 3 times. THen drive and refill til 3 more clicks and divide the gallons into the miles to get the mpg.

I am almost 90% around town driving, so with the staggered and only a typical 5-10 mile drive to anywhere I go I have been averaging 24 (according to the little average MPG meter).

AAG
10-16-2008, 03:50 AM
Dude, you are freakishly close to me, I go to va center commons. Infact I use to work at that sears tire america.

THe best way to tell fuel economy is to fill up til the pump clicks off 3 times. THen drive and refill til 3 more clicks and divide the gallons into the miles to get the mpg.

I am almost 90% around town driving, so with the staggered and only a typical 5-10 mile drive to anywhere I go I have been averaging 24 (according to the little average MPG meter).

Forcing more gas into the tank after the 1st click is a :no:. Once it stops, stop pumping.

cobb
10-16-2008, 05:21 AM
Ive read 3 clicks somewhere, either a prius or fas-savers forum. Then I drive about 48 miles. I know on thr xa forum there was a guy who filled up til it started to spill out so he could get 400 miles or so per tank. Think he ended up with evaporator or caniistor problems. 1 click doesnt mean its full, it could be just air.

AAG
10-16-2008, 02:23 PM
Topping off ruins the charcoal canister. It causes raw fuel to actually enter the charcoal canister. Once the canister is exposed to raw fuel it is ruined. It absorbs it. Anyone who is unaware of what that does, it serves to burn fuel particles that are emitted from inside the gas tank. This in turn increases fuel ecommony besides being a mandated emmissions device.
Basically, DONT top off. Not only can you ruin your canister but also may decrease fuel economy.

whartman77
10-17-2008, 08:27 PM
I frequently drive in the VA center commons area and then mostly around highland springs/staples mill intersection. My drive to work literally is minutes down hungary and I am golden. So no highway mileage for me unless I take trips.

And I haven't spent the time or paid that much attention to the miles per gallon; but I typically use the trip meter and restart it at every fill up to get actual MPG.

CIONIDE
10-17-2008, 08:43 PM
I typically use the trip meter and restart it at every fill up to get actual MPG.
I don't know about anybody else, but the MPG on my trip computer is ALWAYS high by 1-2 mpg as compared to my actual calculation of mileage driven divided by gallons at refill. I also reset the trip computer at every fill-up.

cobb
10-17-2008, 10:58 PM
Know the power outage yesterday from Glen Allen to Lake side? Lets just say the traction control and skid control works well for crossing the roads without working signal lights. :)

Yup, I live in highland, work in glen allen, take 64 and 95 twice a day.

I frequently drive in the VA center commons area and then mostly around highland springs/staples mill intersection. My drive to work literally is minutes down hungary and I am golden. So no highway mileage for me unless I take trips.

And I haven't spent the time or paid that much attention to the miles per gallon; but I typically use the trip meter and restart it at every fill up to get actual MPG.

1GreeKtC
10-17-2008, 10:59 PM
723 miles.........18miles to the galon lollllll oops....

cobb
10-18-2008, 01:24 AM
I got 200 miles again at half way, almost 300 at 3/4 used. My xa I got the epa est til I hit like 3000 miles, then it started to climb. Going to get some trd springs for a mild drop and the lip kit to let less air under the car.

723 miles.........18miles to the galon lollllll oops....

1GreeKtC
10-18-2008, 06:23 AM
I got 200 miles again at half way, almost 300 at 3/4 used. My xa I got the epa est til I hit like 3000 miles, then it started to climb. Going to get some trd springs for a mild drop and the lip kit to let less air under the car.

723 miles.........18miles to the galon lollllll oops....

by 723 miles i mean that those are the miles on the car....not one tank lol.....i get 18miles/galon..hahh

cobb
10-18-2008, 01:27 PM
Yeah, somethings wrong there.

I just filled up the second time, 349.9 miles 11.4 gallons of gas. 30mpg and that includes hot dogging it in the rain yesterday to test traction control and the anti skid and anti lock brakes,

Needless to say, this is one great car even in its stock forum. Just wait til I get some sways and springs. Thinking of trd springs for a mild drop or at least even it out. Got word that the trd sway has been redesigned and delayed, going with my buddy hostkins (SP?) instead, I loved the bars on my old xa.

cobb
10-24-2008, 12:46 PM
317 miles 10.1 gallons of gas.

srb219
10-25-2008, 07:22 AM
Last tank 30.5 actual. Computer showed 31.3

jingjing
10-25-2008, 02:22 PM
on my xb2, i have round 9k miles on it now and have averaged about 23-26 mpg. 50/50 to 75/25 city/highway driving with about 200 lbs of work stuff in the back. mines an auto too.

jthistle
11-02-2008, 12:25 AM
I redid my grill block. I still have to clean the tape residue off.
http://img03.picoodle.com/img/img03/3/11/1/f_GrillBlockVm_7198cbd.png
Here is first one for comparison.
http://img29.picoodle.com/img/img29/3/8/13/f_grillblockm_992c2f4.png

cobb
11-02-2008, 01:55 AM
Wow, that makes a difference? Wonder how lowering does too?

I got 30 last tank. Part of my way back from wva doing 68mph and a few days back and forth to work. Seems speed effects fuel economy more on this car than others.

Anyways, the only other car I know of with this much leg room for the driver, features and handling are from a car 4 times as much with about ten less per gallon.

If you want to try to get better fuel economy, set the dash to instant mpg read out and drive to get highest mpg. When accelerating it should steadly increase, if it dives sharply, let off the gas some.If you start to approach 3-5 thousand rpms and it starts to drop, thats your shift point.

However, if your entry to the next gear it drops like a rock and you back off the gas and it still drops, you shifted too early.

Lots of trial and error to get great fuel economy. Be interesting to know if the throttle plates echo the gas petal position in a linear relationship only or if it takes in effect other sensor readings.

jthistle
11-02-2008, 02:28 AM
I have a ScanGauge II to help me. I monitor the Throttle Position Sensor, the Intake Temperature, the Coolant Temperature and the MPG. I find the MPG on the ScanGauge updates faster. Rather than driving by the MPG gauge I use the TPS. I try to keep my TPS as low as I can to maintain my desired speed.

Springs will probably be my next purchase. Then when spring gets here I am going to get some Motegi Racing Trak Lite 16" rims. They weigh in at 12.1 lbs per wheel.

91cavgt
11-03-2008, 02:52 AM
Last week my wife and I traded her '05 Corolla in for an '09 Xb. The first tank of gas yeilded 24.6 mpg.

Slappyjoker
11-05-2008, 02:14 AM
Damn where are all of you driving??

2000 miles on my 09, average of 34 mpg........as long as you keep your foot off the damn pedal you will see a major increase. This is a mix of about 30% city 70% Hwy. I am getting sweet mpg.

91cavgt
11-05-2008, 02:36 AM
Damn where are all of you driving??

2000 miles on my 09, average of 34 mpg........as long as you keep your foot off the damn pedal you will see a major increase. This is a mix of about 30% city 70% Hwy. I am getting sweet mpg.


My wife drives from The Colony to D/FW airport in rush hour traffic. And she's usually running a bit late so she makes up for that lost time by pressing harder with her right foot. :lalala:

shasta_mc_nasty
11-14-2008, 12:32 AM
ok i have 20 " rims on my car i get 26- 28 hwy and 24 city ..now wheni took them off and put the stocks back on i was getting 28-30 city and 30 - 34 hwy at 80 mph ...cruise control..lol

TrevorS
11-14-2008, 01:00 AM
I redid my grill block. I still have to clean the tape residue off.
http://img03.picoodle.com/img/img03/3/11/1/f_GrillBlockVm_7198cbd.png
Here is first one for comparison.
Am I misunderstanding, or are you deliberately cutting off air flow to your radiator?

bego
11-14-2008, 01:30 AM
I have got just about 2100 miles now and have an average of 25 mpg. I have an intake and dual exhaust done to it and drive this car daily in city. Driven maybe 20 miles on the highway total since new.

cobb
11-14-2008, 02:24 AM
Yes, he is blocking off the grill. Thats why the nose of nascars are blocked off with tape with the small opening they have already. Seems the more aerodynamic the car is, the better fuel economy it gets. Since our cars have dual electric fans and a temp meters, its not such a dangerous idea as it looks. Myself, I would block off the lower grill as it looks bigger, but thats me.

Ive been sick and driving some what agressive and I am at half a tank and 124miles covered, I normally get 210 miles at half a tank.

jthistle
11-14-2008, 04:15 AM
Am I misunderstanding, or are you deliberately cutting off air flow to your radiator?
The block is there to redirect airflow around the car rather than letting be trapped in the engine bay. Trapped air creates a parachute like effect that causes drag. Blocking off the top grill has a minimum impact on the air flowing to the radiator. If you look into your top grill you will see about 1" of radiator sticking up above the bumper. Most of the upper grill is dead space.

I have a ScanGaugeII that continuously monitors my actual coolant temp. On the highway the coolant is at 188 deg and in the city is 190 when I am moving and will go up to 202 in stop and go traffic, where the fans come on. The cooling system is designed to handle the hottest temps in the southwest ~110+. Chicago rarely gets above 95. I had no issues with the block this summer.

I would not suggest a grill block unless you have a temperature gauge that is more accurate than the one on your dash.

cobb
11-15-2008, 11:10 PM
Scanguage questions!!

Have you noted the fuel consumption with the xb warmmed up in nutral, drive, park and the above with ac on. Whats the readings?

What about vacuum vs fuel economy? I got a second hand tacoma with super charger and vacuum/boost meter. Seems at highway speeds in od it reads 15psi vacuum, if I turn off od it jumps to 30 psi vacum, but higher rpms.

Thanks

tainoxl
11-16-2008, 12:09 AM
LOL, shoulda got a Fit or 1gen XB.

bego
11-16-2008, 01:41 AM
Do ya'll notice a difference in the mpg's when doing springs or aftermarket rims and tires??

DAILYXB-TYPE-R
11-16-2008, 05:09 AM
would blocking off the upper grill makes the engine bay get hotter because theres no air going into the engine bay to help cool down a bit?

jthistle
11-17-2008, 01:08 AM
I don't think it does the radiator seems to be pretty well sealed off except where the fans draw air.

DAILYXB-TYPE-R
11-17-2008, 03:57 AM
what if i block off the lower grill also?

CIONIDE
11-17-2008, 04:14 AM
what if i block off the lower grill also?
BOOM!! :shock:

jthistle
11-17-2008, 01:59 PM
For winter I was going to partially block the lower grill. I will probably leave a 1 inch high opening across the width of the grill. This will be trial and error to find the balance between air deflection and the minimum required cooling. Another thing I would like to try is using a very fine mesh. I have read that at high speeds the mesh will act like a solid surface blocking the air. Then at lower speeds (city driving) the mesh will allow air to pass. I plan on making my lower grill easily removable in case there is a cooling problem.

If you want more info about the concept of grill blocks check out http://ecomodder.com/forum/aerodynamics.html, the Aerodynamics section at Ecomodder.com. This is where I get my information.

Have you noted the fuel consumption with the xb warmmed up in nutral, drive, park and the above with ac on. Whats the readings?
I checked this morning after arriving at work (30 min drive to warm car). All measurements were taken at idle.
AC Off
D = .19 GPH
N = .17 GPH
P = .19 GPH
AC On-------------Cycle On-----------Cycle Off
D =-----------------.28 GPH-----------.19 GPH
N =-----------------.26 GPH-----------.17 GPH
P =-----------------.28 GPH-----------.19 GPH
The AC will cycle on and off.

Disclaimer:
I am not responsible for any damage that might occur to your vehicle by copying the ideas I have discussed in this thread. You are responsible for your own vehicle and any modifications you choose to make to it.

cobb
11-17-2008, 02:28 PM
As long as you can monitor the temp, I see no problem withblocking the grill. I havent, but was going to use electric tape for the upper grill myself. Then maybe some lengthsof 1 inch rubber tube as that seems like a perfect fit for the lower grill rows.

In the winter its not uncommon for people to block the grill of a truck to keep it warm and many people do this to the prius to make it more aero and warm up faster.

I use to have a 240d mercedes I put a piece of cardboard infront of the grill. Made it warm up faster and still kept its cool. I removed it before using the ac. Beats me regarding fuel economy.

Thanks for the readings. Interesting it burns less fuel in nutral than park. I wonder why that is?

My xa with manual tranny when I had s scan guage read .12 at idle with no ac, .24 with ac warmmed up for both readings.

jthistle
11-17-2008, 02:44 PM
I noticed there was a GPH spike when shifting between gears. Also under certain coasting conditions the GPH will drop to 0.00.

cobb
11-18-2008, 03:01 AM
Its should drop to 0 when engine braking or its turning more than 1700 rpms with no throttle input. It should spike at the wrong shift point, shifting too early. I am sure with some tweaking it can have way better fuel economy.

I would tweak it so with zero throttle input and cruse control off it upshifts to keep the engine at 1700 or more rpms so it engine brakes and burns no fuel, but spins the accessories. With cruse on it would behave as normal.

Second, it would use vacuum pressure to decide shift points and take a gear out longer before shifting to next gear. This may lead to more hunting unless it locks and unlock the torque converter instead.

Lastly, if cruse control is on, it should be less agressive and upshift more or unlock the torque converter.

I have been driving my new used tacoma with super charger, automatic and vacuum/boost meter. It seems to shift more on throttle position vs vacuum. Seems crazy to run 6psi boost in 4th gear at 50mph. It should upshift to 3rd and unlock the torque converter and turn more rpms, but I was using the NORMAL mode. I got 220 miles on 13 gallons of high test gas. Trying this run on the power mode. So far seems to shift more than boost when accelerating, so its running more on engine that charger.

I noticed there was a GPH spike when shifting between gears. Also under certain coasting conditions the GPH will drop to 0.00.

jthistle
11-18-2008, 02:17 PM
Relating to more fuel efficient cruise control you might find this thread interesting
http://ecomodder.com/forum/showthread.php/cruise-control-mpg-sensitive-logic-2031.html

cobb
11-18-2008, 04:08 PM
Thanks, this car is one where using cruse control actually wastes more fuel than it saves. I know on another forum they hacked the servo so it can be locked at a certain throttle position, however since all roads are not level and the wind is constantly changing, I dont see how that is a safe mod.

I like the idea of turning down the gain, so you slow on hills like the big rigs do.

Relating to more fuel efficient cruise control you might find this thread interesting
http://ecomodder.com/forum/showthread.php/cruise-control-mpg-sensitive-logic-2031.html

cobb
11-30-2008, 12:43 AM
Here is mines, I used 3m reflective tape, its a silver white color, looks cool.

http://c4.ac-images.myspacecdn.com/images02/47/l_4a217fb27fc145418d34665320be4ef7.jpg

I redid my grill block. I still have to clean the tape residue off.
http://img03.picoodle.com/img/img03/3/11/1/f_GrillBlockVm_7198cbd.png

Y8RS
12-09-2008, 02:36 AM
08 xb2 I get 30 to 33 setting the cruise at about 72ish.Ive done the trd cat back trd cold air and the quik shift cold cai is the best mod so far

hangout
01-19-2009, 04:16 PM
best I had
31 MPG with auto tranny

hangout
01-19-2009, 04:16 PM
try Mobile one, you will have better MPG

cobb
01-19-2009, 05:55 PM
To date worse 21mpg, best still 31 stock setup automatic.

anthonyha
02-18-2009, 01:37 AM
27.2 5speed

Steve60
02-18-2009, 03:31 PM
34.2 highway - sweet spot seems to be 2600

21 city

Winter gas. Summer is better...............

Should have added, this is an auto

bego
02-18-2009, 06:23 PM
just over 5000 miles and getting an average of 24.4 i think with a 5 speed

elwaylite
04-01-2009, 10:39 PM
700 miles, just got 28.6 on the last tank.

iamham
04-06-2009, 04:10 AM
By my calculation I got 24.5 on my last tank. Thats about half the time highway and half the time city.

CIONIDE
04-06-2009, 04:44 AM
You're right on target. I drive about 80% on highways, and have averaged just under 27mpg over the 35k miles on mine.

elwaylite
04-06-2009, 10:02 AM
Im prob 90% hwy, and getting a minimum 28 is not hard. On this last tank, I did a little more city and still hit 27.7, and that was with getting on it a few times.

IMHO, accelerating in a way to where it never revs over 2500 when shifting, and staying at a decent speed on the interstate, will give this little box very good mpgs.

elwaylite
04-20-2009, 01:45 PM
Just took a 300 mile trip to Washington DC, 70-75mph and some stop and go city, 30.2 mpg's. My work week commute, which is 20 miles city and 50 miles hwy every day, still getting 28.0 to 28.5.

Love this car.

cobb
04-21-2009, 03:55 AM
Dont get me wrong, its fun to shift at 6 grand, but that eats your fuel economy just like idling does. I am still getting 30mpg. I use like below light pressure letting the car get up to speed by shifting gears. About 37mph you see the rpms dip 500 rpms. That means the torque converter has locked, continuning with light pressire it seems to accelerate faster at 500 rpms less. Too much pressure it will turn off and waste fuel.

The cruse control is too agressive and it helps more to use your foot than it. It would be great if we can turn down the gain on that.

IMHO, accelerating in a way to where it never revs over 2500 when shifting, and staying at a decent speed on the interstate, will give this little box very good mpgs.

TrevorS
04-21-2009, 04:46 AM
Dont get me wrong, its fun to shift at 6 grand, but that eats your fuel economy just like idling does. I am still getting 30mpg. I use like below light pressure letting the car get up to speed by shifting gears. About 37mph you see the rpms dip 500 rpms. That means the torque converter has locked, continuning with light pressire it seems to accelerate faster at 500 rpms less. Too much pressure it will turn off and waste fuel.

The cruse control is too agressive and it helps more to use your foot than it. It would be great if we can turn down the gain on that.

IMHO, accelerating in a way to where it never revs over 2500 when shifting, and staying at a decent speed on the interstate, will give this little box very good mpgs.
Be it automatic or rmanual, the key is light pressure on the accelerator and shifts early enough to not strain the engine, but not waste fuel on rpm either!

masterbB
04-21-2009, 05:04 AM
i average 19...lol

elwaylite
04-21-2009, 09:48 AM
I usually keep mine the 2000-2500 rpm range while accelerating up to speed.

cobb
04-21-2009, 03:51 PM
Shhhh, everyone will want to do that now.

I got my worse fuel economy in va beach helping my aunt shop for a coffee table and stopped at 11 furniture stores and dealing with rush hour traffic on the way down from richmond and back. It was slam the gas to the floor, get up to 30-60mph, then slamp on the brakes while looking over both shoulders to find a faster moving lane to whip into.

i average 19...lol

elwaylite
06-04-2009, 09:27 PM
Newest

288 miles
75 miles of it city, the rest 65-75mph hwy

29.9 MPG's :)

I use cruise control whenever I can

Steve60
06-04-2009, 10:27 PM
220 miles - 1 trip - 31mph average = 28.7

08 Auto

This is less than 1mpg less than my first gen1 auto - same trip, almost identical traffic & weather. I LIKE IT!
225/40 18 on a 7" DR17 @38psi cold

adalida7
06-08-2009, 02:48 AM
Post mpg here please

xb 5 speed MT, run more than 1K miles averages 27.9 to 28.3 Average speed between 65 to 75mph. 10miles hiway, 5 stop and go.

Schmohey
06-08-2009, 11:00 PM
How are we calculating MPG? Based on the MPG thing on the same display as the clock or a different method?

elwaylite
06-08-2009, 11:12 PM
Only way you should, fill the car, reset the trip, dive it, fill it then do your math.

The display MPG is a tad high and avged over a long time.

elwaylite
06-12-2009, 05:59 PM
Just compared BP Invigorate and Shell Nitrogen fuels here. Both seem to do very well for MPG's.

http://www.scionlife.com/forums/viewtopic.php?p=4262776#4262776

Flawlessly
06-13-2009, 12:45 PM
I got 25.2 avg mpg from the screen, half speedway, and half city, driving like half auto and half semi-auto. I use Shell 93.

jthistle
06-15-2009, 01:49 PM
Typically using anything other than 87 is a waste of money.

elwaylite
06-15-2009, 01:55 PM
Yepp. 93 in an 87 recommended vehicle has also been known to cause problems with 02 sensors (Ford)

tim_rs6
06-19-2009, 04:35 PM
Over the first 900 miles and 3 fillups i've gotten:

1st - 85% City 15% Highway - 21mpg
2nd - 75% Highway 25% City - 25mpg
3rd - 75% Highway 25% CIty - 27mpg

87 octane from either Mobil, Sunoco, Shell, or BP's.

elwaylite
06-20-2009, 04:55 PM
As mine heads toward the 5000 mile mark, I am seeing its a lot harder to make it get less than 28. In the beginning, if I had a lead foot at all, id hit 26 or so. 5000 miles must be where she really starts getting broken in.

RC-PILOT
06-28-2009, 09:28 PM
I have about 500 in my new B. I cleared the computer while running 75 on the interstate. After about 58 miles at 75 it showed an average of 31.9 mpg. Other than that I really don't intend to do calculations untill after at least 1000 miles. The engine needs to seat or wear-in. Even the book says the engine is not broken in untill after 1000 miles.

chopperzXB
07-16-2009, 04:08 PM
My xb2 (automatic) gets 25.6mpg no matter how I drive. I drive to and from work about 35 miles round trip and get 25.6mpg. I drove to South Dakota this summer and averaged almost 75 miles/hour and still got 25.7mpg. Even with a lead food and using the auto shift stick I still get around 25.6mpg. So yeah, 25.6mpg for me!!

slidemx5
07-20-2009, 03:33 PM
just an update. I shift at 4k or so, depending, I'm averaging 28mpg on my drive to work (about 70/30 highway/city) and on pure highway I'm getting about 30-31mpg.
I keep pretty strict records of my mpg and mileage and have found with premium I tend to get about 1.2mpg better (not worth the price of gas increase)

chopperzXB
07-20-2009, 06:27 PM
I just installed my header last week on Thursday. My MPG just increased to 28mpg in the city and a little over 30mpg highway!