Join Date: Jun 2010
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you need to look at the vin number which will tell you where and when the truck and engine were built. I have an 08 that was manufactured late in 08 which was supposed to be after they fixed the bugs. I get average 10.6 mpg but about 16.5 highway flat and empty. the truck is great except for the fuel system. the 6.0 had issues as well but i think it was a better motor especially the last builds. Ford voided my warranty when I did not change my fuel filter every 12,000 miles and diesel fuel got into my engine. make sure you have only the dealer service your truck while under any kind of warranty and change the fuel filters every time you change your oil. you also must drain your filters of water every month or warranty void. but ford will not warranty any fuel related problem anyway. never tell the dealer you have ever towed with your truck, or driven in any manner which will put you in the severe service bracket. oh, and ford also goes by either engine hours or odomoter whicher shows greater mileage for warranty purposes.
Last edited by Captain Kirk; 06-24-2010 at 08:57 PM.
Reason: forgot to answer your questions.