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20mpg average possible?
I ordered a 2010 Tahoe LT and made sure I did not get the towing package. This gives me a 3.08 rear axle gear vs a 3.42 with towing. The 2010 also has a 6 speed trans. May have been 09 the first year for this trans not sure. I have two year average of 19.4 mpg. This is with no mods other than...- SAM77
- Post #55
- Forum: Performance
