Thread: Engine Oil
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Old 10-31-2013   #229
Mark Leasure
 
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Join Date: Aug 2006
Location: eagan
Posts: 898
Re: Engine Oil

Thoughts on the best oil to run in the winter for 500WHP stock block FP red powered evo? I run 10w40 high zinc amsoil for the summer. I think I ran 5w30 amsoil last winter, but I don't think it has the same high zinc formula. What has a good level of zinc in a low weight oil? I don't turn down the boost for the winter either. I'm not sure what could go wrong if I just ran the 10w40 all year????
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