PoppinJ
Well-Known Member
Truth. This is also why the manuals recomend 5w 20 for daily driving but 5w 30 for track use.I have not seen concrete evidence that newer Coyotes/Voodoos/Predators run tighter and tighter clearances than previous Coyotes/Boss motors.
Also, Ford recommends oil for their engine based on certain operating parameters. Once those parameters are exceeded, the original recommendation is not as relevant. This can be seen by the fact that they recommended different oils for the same exact engine based on expected use and operating parameters.
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