wait .. who?

 

the person who started the thread

 

no 20's... had stock correct pressure 24 mpg...18's 24mpg it's 24 ...even if i shut it off and pushed it i'd still get 24 ...mileage sucks luv the car but mileage sucks

 

Why would anyone expect high 30's when it is rated 30/35? My first tank 25mpg mainly around town and in some light snow (3 inches or less)

 

On my complimentary tank the dealer gave me at delivery, I filled up before an ice storm was to hit my area and threaten power outages to everyone in the area. So I filled up with quarter of a tank to go. ....

195 miles on tripmeter divided by 8.2 gallons

equals.....

23.78 m.p.g.

Easy going driving , a little interstate cruising in the 60-70mph range.

Still on second tank,,,

 

WHAT HOTBOX05 WROTE IS RIGHT!
I RENTED A NEW CIVIC & DROVE IT FOR A MONTH, I WAS GETTING OVER 320 TO THE TANK. THE CIVIC HAS MORE LITERS & THIS ONE HAD OVER 20,000 MILES ALREADY. I'VE HAD MY XB SINCE LATE SUMMER, SO I WAS VERY DISAPPOINTED, I ONLY GET AROUND 280 TO THE TANK. THE CAR NEEDED AT LEAST THE COROLLA MOTOR, TOYOTA ONLY MAKES LIKE 5 DIFFEREMENT MOTORS FOR THE DAMN THING!

 

17.2 mpg city in the auto. crap crap crap
27.1 mpg highway in the 5spd. crap crap crap.

That's not exceptable. If I could, I would return them based on this. no lie.

 

to give you an idea, the Safari got the same city milage as the xB. 4.3L 190HP v6 and 8 passengers. I bought these to be nice to the environement and they suck crap.

 

I agree with superjeer; I get crappy milleage, never over 250 miles to a tank (and I don't let the gas light stay on too long, usually there is at least a gallon of gas left). The only thing I have working against me is my heavy ___ 19" wheels.

 

Not only the weight of the wheels but more rubber on the road creates more friction reduces gas mileage. The heavy wheels also work against your braking system.

 

I heard somewhere that sometimes resetting the ECU followed by some easy driving for the next tank of gas while the ECU "relearns" can help get the mileage back to where it is supposed to be.

Give it a try by disconnecting you battery (disconnecting the the negative termina cablel) for about 30 minutes. Then reprogram your radio presets...... and let us know if it worked!

 

'05 5 spd
4,200 miles on the odometer.
Driving style: "Spirited"
Average MPG: 25.5

My other two cars get around 14mpg, so I really shouldn't complain, but I had expected better gas mileage when I made the purchase.

Has anyone noticed whether or not higher octane gas helps the MPG?

I've run a couple tanks of 93 octane through her and MPG seems to have picked up a little. Anyone else tried this?

 

Single tank readings are inaccurate due to nozzle shut off and other variables. Single trip estimates are also non-representative. The EPA estimates only apply if you are driving 55 mph on the highway and the city numbers are more applicable to mixed suburban driving.

These are my real life numbers for a bone-stock 2004 automatic, based on a daily commute into Boston. For those not paying for wrongs in a previous life and thus not familiar with Boston driving, it consists of stop and go, endless traffic jams, brief open interludes of bat-out-of-hell acceleration to try to make up for all the sitting plus miserable weather. My numbers also include warming the car up on 10 degree mornings and a slow leak from a micro puncture in the left rear wheel. All this plus snow, lots of it. My driving style is not sluggish. I have calculated the MPG on a rolling calculation of the last five fill-ups (except the first four) to mitigate pump and filler neck ambiguities. I also have a life time aggregate MPG calculation. In short, these numbers reflect real life in a worst case scenario. Not shabby all things considered. I do wish that the tank was about a gallon or two larger.


DATE........... MILEAGE.... $.................. GALLONS... MPG Last 5. MPG All
.................... 0........................................ 0.000...........0.000.......... 0.000
08.30.04..... 267 ............. $17.85........ 9.600.......... 27.813........ 27.813
09.05.04..... 543 ............. $16.00........ 8.514.......... 29.977........ 29.977
09.12.04..... 787 ............. $16.39........ 8.818.......... 29.222........ 29.222
09.22.04..... 1,052 ......... $16.80........ 9.340.......... 29.432........ 29.003
09.30.04..... 1,342.......... $19.28........ 10.163........ 29.637........ 28.901
10.06.04..... 1,600.......... $18.00........ 9.378.......... 28.696........ 28.667
10.15.04..... 1,881.......... $19.15........ 9.775.......... 29.019........ 28.679
10.24.04..... 2,141.......... $20.00........ 9.906.......... 28.172........ 28.360
11.02.04..... 2,417.......... $21.00........ 10.504........ 27.408........ 28.105
11.11.04..... 2,679.......... $20.40........ 10.204........ 27.273........ 27.848
11.19.04..... 2,941.......... $16.70........ 8.438.......... 26.245........ 28.106
11.30.14..... 3,214 ......... $20.30........ 10.469........ 27.476........ 27.921
12.10.04......3,488.......... $18.85.........10.032........ 27.035........ 27.873
12.18.04..... 3,750.......... $16.75........ 8.819...........27.361........ 27.993
12.22.04..... 3,991.......... $19.85.........10.565........ 27.809........ 27.615
12.30.04..... 4,190.......... $14.04.........7.552.......... 24.470........ 27.552
01.10.05..... 4,426.......... $16.70........ 9.281.......... 25.373........ 27.430
01.17.05......4,687......... $17.55........ 9.754.......... 25.872........ 27.391
01.25.05......4,908......... $15.72........ 8.739.......... 24.682........ 27.289
01.28.05..... 5,111.......... $15.70.........8.268.......... 26.071........ 27.169
02.08.05..... 5,374.......... $17.60.........9.075...........26.303........ 27.252

 

it's bad when my friend gets better gas mileage than my box he drives a corolla s which has a 1.8....130 hp vvti vs my 1.5....108 hp vvti wish i had got the honda ex instead..

 

I have just over 3,000 miles on my stock box with 5 speed, and average a little over 30 MPG with combp highway/city driving. The worst I got was when it was around 10* for the week, and that was 25.8 MPG.

 

Actually this car will pollute alot less.

As I've said before If we had a more powerful motor stock then we would not have to rev the poor little motor to all hell to get power. If we had the 130hp 1.8 those people who drive slow would not need to gun it as much to get up to speed .The 1.8 would be at much lower rpm's and would have to work alot less than our poor little 1.5's. For all those speed demons out there we too would be much happier with both mpg and grin factor.

 

Does a using a higher octane rated fuel give you better mileage? Possibly, but probably not. The principal reason to use a fuel with a higher octane rating is to reduce or eliminate pre-ignition or “ping” that may be encountered in a high compression engine under low RPM, high torque load.

Old school:
Back in the day of ‘60s era muscle cars you could buy a high performance car with a compression ratio 10:1 right off the show room floor. These cars required a high octane fuel or it would ping pulling away from a stop light. There were some ways to get around this such as a rich air to fuel ratio or retard the ignition timing. Although you could produce more power in the lower RPM band without destroying the engine, these adjustments would decrease the MPG. Some of these engines required fuel with octane levels not available anywhere but the airport these days. It is a pity that under street conditions the extra octane rating is not required where the engine is typically only running at partial load conditions over 90% of the time.

Middle school:
When the cost of fuel to a big jump in the ‘70s, the automotive industry began to look for ways to improve the cost of operating a car. Compression ratios dropped to run a cheaper grade of gas.

New School:
Today improved sensors and fuel management provide a range of engine performance management in inexpensive cars that were only available in exotic high end cars 30 years ago The xB has one of these sophisticated engines with variable valve timing, electronically controlled ignition and fuel injection systems all managed with an Engine Control Unit or ECU. The ECU has an ability to account for variables such as the octane rating of the fuel, engine load, RPM and enabling it to sense pre-ignition conditions and adjust accordingly. So, the recommended octane rating for the xB can be relatively low for an engine with a CR of 10.5:1 without destroying the engine.

For those of you who are still with me:
A point of interest of the xB is the VVT-i engine. For those of you who don’t know, “VVT” stands for Variable Valve Timing or the ability to change when the valves open and close in relation to the position of the piston. The “i” stands for intelligence. I have no idea exactly how this human trait applies to this engine but, by definition intelligence is the ability to learn. Makes me wonder what exactly was learned? It seems reasonable to me that those with cars that are getting considerably lower mileage than advertised may have a “dysfunctional” engine that needs to be “reeducated”. I would imagine that resetting the ECU by disconnecting the battery for about 30 minutes should do the trick. Then driving on a tank of 87 octane gas without simulating NASCAR conditions may get the mileage back to where it should be. If this works, I get 10% of the fuel savings OK? ;^)

 

^^ couldn't do it, sorry. I have a short attention span ;-)

Higher octane in an engine that's not pinging at 87 will not improve mileage. It's a fact. I read it at shell site. scionicman had the link in another thread, I think.

The only way the safari would pollute more than the xB is if the safari’s emission stds were lower. (very likey, it was a truck and built in '97) So, that helps a little, thanks!

Finally,

I think b!^ching works, because I got 31 last tank and this tank looks even higher. I will not rest until I see 34 though.

 

Don't count on it. Unless it's all highway and slow.

 

I wish it was legal to drive the car through the dealers window and demand my money back.