I'm not sure why it would void engine warranty. Good thread from SVTPerformance: http://www.svtperformance.com/forums/showthread.php?1069354-What-s-the-deal-with-Red-Line-Oil
Those that speak seem very knowledgable with UOA results to back up there conclusions.
Those that speak seem very knowledgable with UOA results to back up there conclusions.
But, IF they really cause No problems, I WILL use them (those three oils are ALL I ever used in my last car, along with the Millers NT racing oils).