Quote:
Originally Posted by cmcnabb
I have an 06 F140 with a 5.4 2WD. I get terrible gas mileage, and I drive pretty easy. With a mixture of town and highway driving I get about 14.5. I changed the air filter and it didn't make a difference at all. Anyone else have this vehicle and get bad mileage? Should I run some fuel injector cleaner or will that even do anything? I love the truck, just wish it was had a little bit better fuel efficiency
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have ya tried changing the fuel filter??? and if u havent then try that and pour fuel injector before u put in a new fuel filter not air filter it doesnt really make a different. fuel filter does make a different in some ways due to clogged up lines or others reason. last resort wud be new fuel fiter and a k and n air filter. i have a k and n filter in my f-150 also i usually change my fuel filter every once a year.