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Old 12-13-2011, 09:09 PM
09ramhvac 09ramhvac is offline
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Join Date: Dec 2011
Posts: 4
Gender: Male
Vehicle: 2009 Dodge ram
Engine: 2009-20?? 345ci (5.7L) Hemi V8 390hp 407lb/ft
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On a reasonably level road I can get 22-23 mpg. But on the loop I take to work I get anywhere from 18-20 mpg driving super conservatively. But I think with 3.92's I would be using less throttle. I had a ranger with 3.73's pulling 33's I put in 4.10 and I gained 5 mpg. Even though my rpms were higher I was using less throttle. I know there 2 different trucks but I think the same theory applies.
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