Thread: 50 w oil
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Old 04-21-2009, 05:21 PM
StreetSnake StreetSnake is offline
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Default Joe Gibbs XP4
This may be a little off topic but I currently run the XP4 oil in my 427W. It was recommended by my engine builder (Eric @ Performance Engineering). It is a 10-50. Do you guys have any thoughts on this oil.
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