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

    Apr 30, 2009, 12:37 PM
    F-250 6.0 diesel runs rough when first started
    When I start my truck cold it runs very rough and smokes. Also will not make power. Once warmed up it seems to do fine. What type oil should I be using? I am in northern, IL.
    THX
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Apr 30, 2009, 12:43 PM

    I would only use a full-synthetic diesel HDEO in a diesel truck, particularly in northern Illinois where it gets cold. There are several suggestions in the link below:

    https://www.askmehelpdesk.com/cars-t...ml#post1415281
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