Quote:
Originally Posted by BP68
My 06 ECSB 5.3 2wd with 20's gets about 13.5 - 14.5 since swapping to 3.73 gears.
It got high 14's - 16 with the old 3.23 gear
This is city driving.
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Another thing I do is shift to 3rd gear when city driving and also when a hill is of such that it would make it shift into passing gear,,so I shift down manually before it does it on its own..
..I would think you should get better milieage than what you do with a half ton 2 wheel drive ??