87 vs. 93
#32
When i had the TT3000 id drive around town in 3rd so it would lock. i picked up 2mpg by doin that 
Interested in seeing how this CircleD acts.
If your goin to get the retune, go 93
Ive been running 93 for 5 years now, even when it was 4.25

Interested in seeing how this CircleD acts.
If your goin to get the retune, go 93
Ive been running 93 for 5 years now, even when it was 4.25
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therock
GM Drivetrain & Suspension
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Jul 25, 2015 09:23 AM




