Who needs a hybrid!?

[enwave]

I have a mostly light downhill drive from SLC to my place about once a month -- 45 mins all freeway. Got the trip display to show over 40mpg when reset after getting on the freeway. 6AT here. It was awesome.

Also just took her from SLC -> Vegas, San Luis Obispo, Carmel, Monterey, Tahoe, back to SLC and averaged 33.5 according to trip - that's including some spirited driving on the PCH. Awesome stuff!

Proof: http://imgur.com/881bmC6

[ntr0py]

Originally Posted by Veloist

How flat are the places you guys drive?!?

I have 21.5mpg mixed on my FR-S and it's kept below 3k RPM since it has 430 miles.
I get 42mpg mixed on my 2012 Prius.
I had a Scion xD that got 19mpg mixed
My 06 Corolla gets 24mpg mixed.

I do live in a hilly place with 8-12% grades for over a mile.

The freeway is pretty flat but my home is about 2 miles off the freeway and it's all up hill and down hill from there. My average for the life of my car (about 4500 miles) is just over 29 mpg. I keep track of it using the Gas Cubby iOS app (didn't know about Fuelly). The 39 mpg I got above was all pretty much flat.

[BlueDubbinTDI]

I've gotten 42 on a 10 mile trip before. However, I have a hard time maintaining above 29 on the computer. Once you get on the gas that average plummets

[dem00n]

You guys drive like grandmas.

[ntron1]

Originally Posted by dem00n

You guys drive like grandmas.

If I want to drive like a Jackass, I take my other car. The BRZ does just fine on fuel and with so little relative power stomping on the go pedal every so often only hurts a little.

[frsvr4]

Originally Posted by ntron1

If I want to drive like a Jackass, I take my other car. The BRZ does just fine on fuel and with so little relative power stomping on the go pedal every so often only hurts a little.

I like to keep the revs relatively high while not necessarily driving like a jackass so I don't always have to downshift to accelerate. It makes me laugh to find out that the meter actually reads high. I cleared mine today at about 1200 miles, with a 24.x mpg average. In the short trip thereafter, I didn't come remotely close to 20 mpg

-Jackass

[fistpoint]

Mine gets 127 mpg

[Boostedpro]

I wish I could see those kind of numbers. Mine gets about 20-21 mixed driving.

[smbrm]

Originally Posted by WHITE

Its really impressive how well this car does on gas when your not driving like an a-hole. My current best was during a return trip from Williamsburg VA to wilkes-barre PA. i did the entire 334 miles trip on less then a tank of gas getting my highest avg. of 44mpg, this was even with 2 hours of stop and go traffic, going 65-75 mph when possible, and having 265/40 18's on the back and 255/40 18's up front on 18x9.5 rpf1's. 6spd manual trans also.

I was speechless.

Edit:
i lied, just found the picture i took of my avg. during the trip,

So how did you get the odometer/computer to compensate for the larger diameter rear tire?

[WHITE]

Originally Posted by smbrm

So how did you get the odometer/computer to compensate for the larger diameter rear tire?

I didnt, i assumed it would screw up the computers read out but the speedo has been dead nuts with every gps/speed sign/iphone app/other car woth me. Soooooo unless theyre all wrong then my computer compensated for the change in size? Idk.

[strat61caster]

Originally Posted by WHITE

I didnt, i assumed it would screw up the computers read out but the speedo has been dead nuts with every gps/speed sign/iphone app/other car woth me. Soooooo unless theyre all wrong then my computer compensated for the change in size? Idk.

Did you verify the speedo with the oem wheels before the swap?

Most speedometers read 2%-5% faster than what you're actually going (my truck is 8%) which would also explain the optimistic mpg readings, with a larger tire spinning at the same rpm as the old small tire the overall vehicle velocity will be faster with the larger diameter tire, basically covering the built in compensation with the speedo.

The computer has no fucking idea what diameter your wheels are, it's just looking at the final drive speed is coming out of the transmission. Most wheel swaps aren't big enough to matter especially given most areas plus or minus 5 mph isn't a big deal.

Also larger diameter wheels are basically adding gearing which lowers rpm and improves fuel economy. Not accounting for the weight gain.

[WHITE]

Originally Posted by strat61caster

Did you verify the speedo with the oem wheels before the swap?

Most speedometers read 2%-5% faster than what you're actually going (my truck is 8%) which would also explain the optimistic mpg readings, with a larger tire spinning at the same rpm as the old small tire the overall vehicle velocity will be faster with the larger diameter tire, basically covering the built in compensation with the speedo.

The computer has no fucking idea what diameter your wheels are, it's just looking at the final drive speed is coming out of the transmission. Most wheel swaps aren't big enough to matter especially given most areas plus or minus 5 mph isn't a big deal.

Also larger diameter wheels are basically adding gearing which lowers rpm and improves fuel economy. Not accounting for the weight gain.

The 46.5mpg was just a one time thing with my 265's and i have not come close to getting that again, i tried hard to get the highest mpg i could on that trip. On my normal commute to and from work all highway i get 27mpg +/- 0.5 with my 265's. with my stock wheels and tires i was averaging 31mpg on the same commute.


I have no clue about the whole speedo crap, i didnt even know the speed sensor was in the diff(never cared to looked for it to be honest) all i know is yime and time again ive checked my speedo versus other speed read outs and so far the most its been off was a "your speed is" sign saying i was 1mph slower then my speedo. idk im not going to try and figure it out, im just gonna continue to drive, i dont care about mpg at all i fill up when i need to fill up and thats it.

[@Art_Mighty]

Originally Posted by fistpoint

Mine gets 127 mpg

...downhill

[meadowz06]

I don't. I get 26 mpg in my 560hp supercharged Corvette on the freeway!