View Full Version : Gas Mileage / Weight


Tc2ndGenWhite
02-14-2011, 12:00 PM
I'm so glad I didn't get the Honda CR-Z! Both local dealerships are BMW-wannabe's! LOL.......so I have to pass on the 38 to 40 mpg......but

On my first drive, I did 60mph.....and she easily put out 36mpg! I can live with that!!!!


Bye bye Murano! (25mpg!!)

Lovin Super White tC

MykeJ
02-14-2011, 03:03 PM
Your lucky if you got that my 1st tank I got 29 then my next 2 tanks just under 26mpg. This is mixed driving for me.

AwesomeX
02-14-2011, 08:45 PM
I'm averaging 22 mpg for some reason.

jkchang626
02-14-2011, 09:11 PM
I averaged 28 mpg on a manual tC2. Which brand and grade of gas is everyone using?

Enzie
02-14-2011, 09:41 PM
How are you guys doing this?!?!?!

I was at 21.9 at my best using premium gas and always trying to keep the eco light on

Then when i got my descendent exhaust i kept being a wannabe manual by using the sequential shifting to sound cool and reving it up, causing my milage to drop to 21.5 cause i hammered my car, every. single. minute. of every drive :D!!!

The point is i was only at 21.9, how are you guys above 25? :l

HOW YOU GUYS DO THIS

tyap
02-14-2011, 10:00 PM
I have 3000 miles on my car now.
My lowest for a tank is 28 and highest is 32.
Average is 30.
I drive about 1/3 traffic, 1/3 city, and 1/3 highway.
I used to have Yaris and that was averaging 38.
Corolla used to average 32.
So, 30 for this car is pretty amazing.
I think even 36 is possible if I go 90% highway.

MightyP
02-14-2011, 10:38 PM
@Enzie: Buy 87 octane. Higher octane gas can actually hurt your mileage if your car doesn't call for it.

I get about 27 mpg driving mostly highway. I have just under 10K miles on my car (most came from 3 road trips) and gas mileage is definitely affected by how you use the car. Remember, the car has a 10-trip (give or take a couple trips) memory. Go all out for 10 trips, your 11th will get better performance and worse mileage. Nurse it for 10 trips and your mileage will go up and performance will go down.

Try it if you have the patience. Turn the car on, drive, turn the car off is 1 trip. Doesn't matter how far or long. Turn the car on, accelerate hard, and turn the car off 10 times. Then on time 11, time your 0-60 mph (someone in the passenger seat with a stopwatch is fine for this experiment). Then do 10 more trips where you drive very gas conscientious. Again, on trip 11, time your 0-60 mph. Not only will your car feel more sluggish, you're car will take an additional 1/2 sec or more to reach 60 mph (assuming your passenger times it the same way both times)

I have a theory this may be why car reviews give such varying 0-60 times.

donsun
02-14-2011, 11:21 PM
I've been averaging somewhere around 26.6 after 2300 miles

AwesomeX
02-14-2011, 11:31 PM
I think I'm averaging 22-23 mpg because I drive mostly on streets versus highways and I've been quite pedal-happy since I got the car.

jkchang626
02-15-2011, 02:05 AM
I think I'm averaging 22-23 mpg because I drive mostly on streets versus highways and I've been quite pedal-happy since I got the car.

I'm pedal happy in my Camry and get 23. I think you still need a few more miles on it before you get proper MPG. The first 4-5 tanks are usually off. After the 6th or so tank (on average), your MPG increases.

stasis
02-15-2011, 02:08 AM
my first 2 tanks were around 36mpg with a stick. averaging 31.3 now. 86 octane

m0ej0e
02-15-2011, 02:34 AM
I am getting 450km a Tank! After the dealer installed my security system it just went down hill like crazy.

ADGE
02-15-2011, 03:23 AM
I am getting 450km a Tank! After the dealer installed my security system it just went down hill like crazy.

They probably had to disconnect the battery to install it, which might've reset your ECU.

I've used 1.5 tanks and i'm at 31.2 MPG. I'd say with 50% highway, and a mix of traffic and city.

Tc2ndGenWhite
02-15-2011, 02:00 PM
Wow, I am shocked at the numbers here! Are these ALL 2nd Gen tC's? I can't possibly be getting anything in the mid 20's.....it says 36mpg....at 60mph. I will wait til I empty the first tank.....then know the figures.

If I don't get in the 30s....I'll probably puke, as this is one of the BIG reasons I got the car...........and traded in the Murano!

OMFG!....crossing my fingers.

Peace!

m0ej0e
02-15-2011, 09:51 PM
They probably had to disconnect the battery to install it, which might've reset your ECU.

I've used 1.5 tanks and i'm at 31.2 MPG. I'd say with 50% highway, and a mix of traffic and city.

I am the same for driving 50/50 city and highway. I get 230ish per half tank. As it is winter I do not let it get below half. I have driven about 1,300KM since the battery was pulled. I have 2,700 KM on the car.

dchan
02-16-2011, 07:41 AM
Got my 2011 tC, automatic, for a week. All city driving with one trip out on the highway. Lots of traffic.

In 200km so far, I'm getting 12 L/100km...which is 19.6 mpg. That's pretty terrible, the way things are going I'm going to barely get 400km for this first tank of gas.

Remember, the car has a 10-trip (give or take a couple trips) memory. Go all out for 10 trips, your 11th will get better performance and worse mileage. Nurse it for 10 trips and your mileage will go up and performance will go down.

If this is true it might explain why the gas-milage has been so bad - I've been driving the car like a mad man since I got it. Will test out the "10-trip memory" and report back...in a few days.

MykeJ
02-16-2011, 11:46 AM
Mistake

MykeJ
02-16-2011, 11:55 AM
Wow, I am shocked at the numbers here! Are these ALL 2nd Gen tC's? I can't possibly be getting anything in the mid 20's.....it says 36mpg....at 60mph. I will wait til I empty the first tank.....then know the figures.

If I don't get in the 30s....I'll probably puke, as this is one of the BIG reasons I got the car...........and traded in the Murano!

OMFG!....crossing my fingers.

Peace!

Not sure why you should be upset its only supposed to get 23-31mpg.

I will tell you my 05 got 29mpg mixed after CAI and AXLE back exhaust. The mods helped it out. So you might want to think about it.

mdiluxe
02-16-2011, 01:47 PM
Yes the more flow will help, but the tc2 is to heavy.

Tc2ndGenWhite
02-16-2011, 02:20 PM
I'll wait til I finish the first tank of gas, as I suspect.....from what I see already, that my MPG is better than the avg reported here.

MightyP
02-16-2011, 02:29 PM
tC2 is only about 150 lbs heavier than the tC1. It's like having a passenger in the car with you is all. Works out to only about 1 mpg difference. Engine, transmission and aerodynamics all play a much larger role.

Manual transmission tC1: 2905 lbs
Manual transmission tC2: 3060 lbs
Difference: 155 lbs

Obie
02-19-2011, 10:05 AM
Lol I'm averaging 18.1 mpg.

MykeJ
02-19-2011, 12:16 PM
Just filled up and did the math I got 28.53mpg. The car has 990 miles on it now. Can't complain about that for mixed driving.

MightyP
02-19-2011, 02:50 PM
That's a good point, MykeJ. For those of you just looking at the mpg gauge on the dash, it's not totally accurate. It reads about 1.5 mpg higher than I really get

Tc2ndGenWhite
02-20-2011, 07:02 PM
Ok, first tank I got 30mpg. (7 days....392 miles on that tank of gas).

I'd say it was a mix of highway and city....but I might weight a tad more highway.

I drove 55mpg diligently. I always tried to keep the Eco light on.

I think I'll get a flat tire emergency kit and remove the spare. Or at-least found out how much it weighs.

Next tank of gas might tell a bit more of the story.

Peace

dchan
02-20-2011, 08:00 PM
I'm on the last quarter of my first tank of gas, on pace to get 17.1mpg (13.75L/100km). Working out to be 400km distance for a full tank (248.5miles).

I drive only city, with tons of turns and traffic (an average trip for me is 5 to 8km, or under 5 miles).

Friend also mentioned that new engines/cars have a "breaking in" period. Hope I get better milage for the next tank!

donsun
02-28-2011, 01:33 PM
Quick 'off topic' question, but I didn't want to start a thread for this question:

What rev's do you shift at for optimal gas mileage? When I first got the car, I used to shift at 3k, but now I've gotten into the habit of shifting at 2.5k and I think the gas mileage has gotten better or it could just be that the car is doing better since it's slowly breaking in.

MightyP
02-28-2011, 02:06 PM
^ Best mileage will come at 1800-2000 RPMs under light load. The closer you can stay to that the better mileage you'll get. You can also increase your mileage by not going faster than 45 mph ever. Give or take 5 mph, it's the most efficient speed at which you can travel.

Now, your 90 year old grandmother will probably pass you in her '85 Buick Regal and the soccer mom in her minivan will DEFINITELY beat you off the line, but you'll get great mileage! :icon_biggrin:

tyap
02-28-2011, 03:57 PM
I shift at between 2.5k and 3k.

rAaR
03-01-2011, 12:50 AM
i've had it for about 3 weeks now havent reset it yet and im at 21.8 with a manual. like 70% city 30% highway o.O

stasis
03-01-2011, 01:44 AM
I feel like I drive like a grandma after I see your guys mileage. Ive still yet to go under 30mpg on a tank, by computer or hand

XerotC
03-01-2011, 03:21 AM
^ Best mileage will come at 1800-2000 RPMs under light load. The closer you can stay to that the better mileage you'll get. You can also increase your mileage by not going faster than 45 mph ever. Give or take 5 mph, it's the most efficient speed at which you can travel.

Now, your 90 year old grandmother will probably pass you in her '85 Buick Regal and the soccer mom in her minivan will DEFINITELY beat you off the line, but you'll get great mileage! :icon_biggrin:

is this even true for autos?

MightyP
03-01-2011, 04:45 PM
^ Yes. Only difference is the AT makes the decision when to shift for you. Some vehicles (big diesels, motorcycles, etc) have engines and transmissions adjusted differently, so the ideal speed/RPMs are different, but it's true of most stuff on the road.

kvnhmmd
03-02-2011, 09:11 AM
I get 25-30MPG per tank. Usually more around 25mpg. Thats highway/city. Mainly highway.

I'll get under 25mpg if I drive mainly city. At best, I get 32MPG driving 70 MPH in 6th gear.

If you live in a very flat area, you will get better MPGs, but if you live where I live (lots of hills/sloaps/turns/bends) you will get worse.

Those of you getting 36MPG have to be doing no more than 55MPH on mainly flat land.

Austin08tC
03-03-2011, 09:17 PM
I've got about 1200 miles on my 2011 6m/t, and all I did was put in a k&n factory replacement filter. I shift around 2800-3000 rpm each shift, and I've been averaging around 32-34, driving about 40% highway, 60% city. I average around 360 o 380 a tank. I don't know if I got a factory freak car or what, but it's been nice Soo far! I traded in my 08 5 spd and haven't been happier! The 08 got about 400 miles a tank with cold air and custom exhaust

Tc2ndGenWhite
03-08-2011, 04:20 PM
This is my second tank of gas doing this...... I put in 16 gal! The light came on, I drove 14 more miles...and put in gas til it was at the top of the filler cap. So I figure if the tank is 14.5 gal.(advertisted) then the filler neck is holding 1.5 gal. (give or take). But without a doubt, I put in 16 gal. I drove 426 miles on the tank prior, and that was pretty much also 16 gal. I drive 55 mph highway, suburb medium quantity stop lights, easy on the pedal (eco light)

I think on the next tank. I'll go with half a tank. As I strongly believe that "it takes gas to carry gas".....weight. This might come in particularly handy during long highway drives....200 miles is no slouch for half a tank!!!

For me, I'm glad to just be doing better than my Niss Murano (the pig!)

XerotC
03-08-2011, 04:28 PM
all that extra gas only adds more weight but also goes to waste because anything more than the tank size gets drained instead of used.

MightyP
03-08-2011, 04:43 PM
I have to do some looking, but I think putting that much extra gas in your car can actually damage the fuel system over time.

Tc2ndGenWhite
03-08-2011, 05:12 PM
I have to do some looking, but I think putting that much extra gas in your car can actually damage the fuel system over time.


If you fill it up that much, and let it sit in the heat....the fuel will expand yes. But, that's not an issue for me.......it's chilly here, and I'm driving over 30 miles today.

I use to load 5000 gals of fuel daily.....when I flew in the Navy. So, .....trust me.....I know about fuel expansion!! Seen it many times.....(at the fuel tank vents).

Peace!

Vlad1024
03-08-2011, 06:14 PM
overfueling might screw with the evap system. They might have fixed that but i'm not sure

MightyP
03-08-2011, 07:03 PM
Fair enough.

topher86
03-16-2011, 11:48 PM
Hey guys I just got my tC2 last week and have done a lot of driving so far and im sitting about average 26mpg a tank. I think I got around 305 the first tank before the low fuel light came on since its a new car I just filled up as soon as it came on because i was not sure how long it will last after the light comes on. And so far on my second tank its about the same I think Im sitting 270 miles with 1/4 of a tank left

mdiluxe
03-17-2011, 12:37 AM
28mpg ftw!

adamf24
03-18-2011, 07:25 AM
I've been averaging around 32-34, driving about 40% highway, 60% city. I average around 360 o 380 a tank.

:confused:

380 miles / 14.5 gallon tank = 26.2 MPG

johndeo11
03-18-2011, 08:17 AM
just registered few days ago. mmmm...

my avg. since i got my tc2 last oct. is 24.7-25. mixed freeways and side-streets. it's under 5k miles...

MightyP
03-18-2011, 03:01 PM
:confused:

380 miles / 14.5 gallon tank = 26.2 MPG

Can't speak to anyone else, but I don't drive my car until the tank is dry. I rarely put in more than 12 gal at a time.

adamf24
03-18-2011, 05:54 PM
Can't speak to anyone else, but I don't drive my car until the tank is dry. I rarely put in more than 12 gal at a time.

Ahhh okay. So you're getting 380 miles out of roughly 11-12 gallons.

johndeo11
03-18-2011, 07:34 PM
:confused:

380 miles / 14.5 gallon tank = 26.2 MPG

i get less than 300 from full to really near empty...

MykeJ
03-21-2011, 01:03 PM
Anyone notice different gas gets different mpg? I seem to get the best with BP. This last tank I got 29.511 when I did the math and that is win BP.

Tc2ndGenWhite
03-23-2011, 05:49 PM
Ok, I filled her up to the rim of the filler cap and was able to get 16 gal in her. It lasted 450 miles (light came on at 434 miles). And it appears my gas mileage has gone down a bit more than I would have thought.

Now we are trying 1/2 tanks (7 gal). I am also going without the spare tire.

I've yet to have a full road trip at 55mph or better. I'll have one next month hopefully. It's 260 miles to the base I have to reach, and I'll plan to go with 1/2 a tank.

Tc2ndGenWhite
03-29-2011, 05:48 PM
Ok, this is my first 1/2 tank results.
I put in 7.2 gal. The gauge read just a tad over 5/8th of a tank.
The low light came on at 194 miles, I drove to 222 and got another 7 gal. Now it indicated just a tad under 5/8th of a tank.

If I avg'ed just a tad on my calcs, I'd have to give it a solid 30 mpg. It indicated....and don't old me to this, cuz I'm not sure if I had reset the MPG meter....31.

I discovered the MPG meter stabilizes the less you reset it. Once you reset it.......don't read it til more than 1/4 of a tank has been consumed. The more readings it has....the better it averages (duh!...lol). Instantaneous readings are somewhat useless I think.....(ie reset, speed up to 55, go up a hill and down a hill....it will say 23mpg...then 22, then 35 etc.)

donsun
04-13-2011, 10:29 PM
i've averaging about 27 mpg after 4000 miles on the car. (manual)

i rode in a buddy's 2011 tC automatic and noticed that it cruised at 80mph at 2.5k rpm? i'm surprised the mileage rating for the auto isn't higher than the manual since i'm doing about 3.5k rpm at 80.

jsqueeze
04-14-2011, 12:43 AM
Just a suggestion, but for those going by the trip computer on their vehicle, if you haven't already done so, try resetting it on the vehicle at different amounts of fuel. I noticed a pretty large difference in mileage between a half tank and a full tank. I was getting about 10L/100km (23mpg) when I would always drive with a full tank. A few days ago when I installed my HIDs and disconnected the battery it reset the trip computer when I was at about a half tank and I finished that tank with 8.9L/100km (26.5mpg) with mixed driving (30% highway, 70% city approx). I usually shift between 2500-3000rpm.

XerotC
04-14-2011, 02:28 AM
i couldnt find the MPG thing until around the second week. was shocked to see it was around 17 MPG, then it averaged out to around 24 now

VVTinme
04-14-2011, 02:58 AM
IIRC, gasoline weighs about 7lbs per gallon, so the difference between half a tank and a full tank should not be noticeable for a car with a 14.5 gallon tank.

Occam
04-16-2011, 05:06 PM
I'm averaging 25-26 on mostly city (with lots of hills, similar topography to San Francisco) with a 6MT.

My Homda Fit had a 5AT that was supposed to be more efficient that the manual, a 1.5l engine, 117 hp, and the curb weight was about 2600 lbs, roughly 400 less than a tC it usually got 26-27 on the same roads.