gentlemen i have a 2005 crew cab short bed diesel 6.0 with 70000 miles. i am now running sct sf3 on the 65 horse canned tune truck has 305/65/18 bfg rubber and 4 inch exhaust on it just took off my green air filter assmebely and put the stocker back on now it seems my milage is better plus the cab is alot quieter was wondering what mpg should i see with this thing friends got a 03 6.0 and gets 20 to 22 i have never seen these numbers even with stock rubber on the truck could i have a issue with this thing form day one of me buying it. best i have ever seen was 16
Well I drive a 2006 with about 60k miles on it. Running a bit hotter tune and bigger wheels/tires than you and the best I can manage on this winter fuel is 13. In summer I am around 15mpg
ya sure i see 13 all the time doesnt matter number 1 or 2 kinda tired of it my brothers early 99 gets 16 to 18 no matter how he drives it if it helps i change my fuel filters every 10000
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