I have a 2006 Duramax and am happy with power but looking for fuel mileage increase. mostly highway 55-65 mph and interstate 70-75 mph. 3:73 gear. any ideas where to make changes to get more economy? Is 20mpg possable? Thanks.
I have a 2006 Duramax and am happy with power but looking for fuel mileage increase. mostly highway 55-65 mph and interstate 70-75 mph. 3:73 gear. any ideas where to make changes to get more economy? Is 20mpg possable? Thanks.
you should be getting 20 mpg stock what are you getting
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