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Lampare · 10-20-2012, 01:25 AM

Well went thorugh my first tank of gas figured out to 15.7 mpg.I drive very lightly cruise control set at 55-60 mph.maybe it wiil get better or worse when it breaks in.short highway trips with mostly city driving.

10-20-2012, 01:25 AM	#1 (permalink)
Lampare EcoModding Lurker Join Date: Sep 2012 Location: Rhode island Posts: 4 Thanks: 0 Thanked 0 Times in 0 Posts	2012 gmc 2500 HD Well went thorugh my first tank of gas figured out to 15.7 mpg.I drive very lightly cruise control set at 55-60 mph.maybe it wiil get better or worse when it breaks in.short highway trips with mostly city driving.