Highway Mode
05-21-2008, 06:43 PM
#1
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Car: 75 Vette
Engine: 406 TPI
Transmission: 700 R-4
Axle/Gears: 373
Highway Mode
Who has it and how much has it helped
your MPG
your MPG
Last edited by 1tpi; 05-21-2008 at 06:45 PM. Reason: spelling
05-21-2008, 07:31 PM
#2
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Car: Death Mobile
Engine: 666 c.i.
Re: Highway Mode
When my GTA was still basically stock L98, I routinely got 30 Miles/US Gallon before I modified the engine extensively. I had all my emissions equipment working including the EGR. In fact, the EGR was a key part to obtaining that mileage.
Do some searches as I made plenty of posts on this subject, including things I tried and experimented with. I think there is even some links to my posts in the "Tuning Stickie".
Do some searches as I made plenty of posts on this subject, including things I tried and experimented with. I think there is even some links to my posts in the "Tuning Stickie".
05-24-2008, 01:04 AM
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Car: 83 POS monte carlo 2015 chevy P/U
Engine: 92 5.7 tpi 5.3
Transmission: 700r4 6L60E
Axle/Gears: 2.42 too high
Re: Highway Mode
i use it. 29.7 hiway is my best so far.
that was with A/C & cruise control running the speed limit plus.
that was with A/C & cruise control running the speed limit plus.
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