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    hunterfishing's Avatar
    hunterfishing Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Dec 29, 2009, 05:36 PM
    Powerstroke problem with mileage from 22mpg down to15 mpg replaced with new aira
    I have a 2005 F250 powerstroke with a 6.0 since I got the truck I've gotten great fuel(22 mpg interstate) mileage until now. My filter(stock) was dirty so I bought a new filter(airaide) to replace it I'm still getting the same bad fuel economy down to 15 mpg. What is wrong here?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Dec 29, 2009, 06:34 PM

    Cold weather is responsible for part of the fall off. Using full-synthetic HDDO, transmission fluid, and gear oil will likely improve mileage by 8 to 10%.
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