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need to know
hey guys I'm still learning about these diesels since i've just recently converted. my questions are that i just bought a 99 f-250 with 141,000 miles. should I go ahead and change the oil, oil filter, fuel filter, due to the fact i dont know when it was done last? and what type fuel filter should I by, or should I just get a stock one. Also should I be using any injection cleaner in this rig and if so what kind and how often. For the last question is I would like to try to find out if this truck has had any mods done, I do know that it has a k&n filter in the stock filter box but other than that dont know what to look for. Thanks again and apologize for my stupidity.
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