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Power Strokes
94-97 Tech
Switching to Synthetic 5W-40
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[QUOTE="jschildm, post: 528200, member: 1864"] My truck starts ok, but I figure it can't hurt. I am not too worried about it, but did anyone notice fuel mileage differences? I think I am going to take a sample this time and send it in for analysis, and then do the same after some 5w-40. Price isn't much different. [/QUOTE]
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