The "NOT SO GOOD" gas mileage thread

Supra-Man18

New Member
Nov 24, 2007
357
0
0
miami
Yes the title states all.. Anyone else on here getting less than 175 miles per tank ! I got 145 miles to my whole tank the other day :aigo: This is kickin my ass. And thats Not drivin like an ass 24/7 either lol
 

GotTurbos?

2J = Here; Swap = Near
Apr 24, 2006
951
0
0
35
Dallas, TX
I also have always got shitty gas mileage. My friend with almost the same setup got like 27mpg and I am fully tuned getting like 19, I don't get it. I did get 23 once, oddly enough it was on the caravan to 2k9 where we were all cruising about about 90. I guess thats the sweet spot for my car lol.
 

Tanya

Supramania Contributor
Aug 15, 2005
1,851
1
0
43
Naples, FL
Damn guys. Are any of you running widebands to see what A/Fs you're pulling? I know I was getting 20 city, 24mpg highway before I dicked around with my A/Fs and leaned it out and now I'm getting 24city/26highway
 

OneJSupra

I'm a sleeper ...
Feb 9, 2007
900
0
0
Supraland
Also depends on how much boost you're running. More boost/air requires more fuel. I have great gas mileage when I had the twins boosting not more than 11psi but with single and boosting 18-22psi the gas mileage is way different.
 

nytefire

Supramania Contributor
Jun 14, 2006
69
0
0
Virginia
I've had 330 miles to a tank driving from Virginia to Ohio speed averaging from ~80 to 120

Daily driving to and from work I average about 250 miles to a tank.
 

Supra-Man18

New Member
Nov 24, 2007
357
0
0
miami
nytefire;1384759 said:
I've had 330 miles to a tank driving from Virginia to Ohio speed averaging from ~80 to 120

Daily driving to and from work I average about 250 miles to a tank.

With A 1JZ ??? I have single turbo, walbro, afpr, intercooler, and exhaust and running 10psi and i only get like 140 :3d_frown: wtf man really.. This sucks ! maybe wen i put my fuel system and Tune ill get better MPG's
 

nytefire

Supramania Contributor
Jun 14, 2006
69
0
0
Virginia
Supra-Man18;1384776 said:
With A 1JZ ??? I have single turbo, walbro, afpr, intercooler, and exhaust and running 10psi and i only get like 140 :3d_frown: wtf man really.. This sucks ! maybe wen i put my fuel system and Tune ill get better MPG's


With a 1jz, walbro, afpr, 2.5" hardpipes, hks exhaust... 12psi stock.
 

10secdream

Got Boost?
Sep 11, 2007
767
0
0
37
Edmonton, Alberta, Canada
I get about 16mpg in the city and about 22 mpg on the highway. This is driving nicely. Spirited driving I am usually getting around 12-13mpg.

This is with a 1JZ, big single, cams, 22psi, 500whp ect.
 

OneJArpus

Supramania Contributor
Jul 1, 2005
2,798
0
0
40
Newark, New Jersey, United States
i get 140 to 150 at half a tank.

Weird part is when i dropped the tank and install the FP it was bone dry. When i put 1 gal in and filled up it only went to 13/14 gallons total. Not 18.5, i get about 20 MPG roughly.
 

WeDgE

Buh-bye 7M...
Jan 2, 2006
495
0
0
Alberta
Crazy.

With my 7M and T78 I would get ~28-29mpg on the highway. Big turbo = easier to stay out of boost. :)
 

Supra-Man18

New Member
Nov 24, 2007
357
0
0
miami
Any recommendations here guys lol.. Our mileage varies all over the damn place ! and i jus changed my plugs about a month and a half ago to IRIDIUMS !