2007 Silverado CC 4X4
#13
RE: 2007 Silverado CC 4X4
Hm, we have the same motor/gear ratio except I have the Std Box, I average 16-16.5 city/highway driving (highway here is an average of 40 mph since I only am on it during rush hour, stop and go) and I have a lead foot 50% of the time, I could probably get 17-18 if I didnt drive like an idiot. I noticed after I hit 10k miles I got a *little* better mileage, nothing to write home about. Although on a 250-300 mile trip I averaged about 75mph with cruise on 95% of the way and got 22.5. So maybe its just a weight deal? The reason I asked about the tonneau was because on my last truck I got 1-2mpg better WITHOUT it on...
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