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lbszr · 04-11-2007

I'm running m1 and getting ready to change to either extended milage m1,or royal purple, or redline or amsoil, still in debate. I'm hearing around 2004 oil grades that went to sm have a lot of the good stuff taken out cause of epa. Some turbo's in racing applications are suposedly locking up and other problems with m1 extended performance sm rated oil. M1 Extended milage is still sl rated,(and only walmart carries it in my area, the auto stores around me don't have it) along with royal purple, and Last store I was at it was hard to find oils that don't have the sm. Some of the racing oils and diesel are still the good ol sl rating. Only what I'm hearing from the internet though.

04-11-2007	#25
lbszr Join Date: Nov 2006 Location: dayton,ohio Posts: 425	Re: Which oil do you use I'm running m1 and getting ready to change to either extended milage m1,or royal purple, or redline or amsoil, still in debate. I'm hearing around 2004 oil grades that went to sm have a lot of the good stuff taken out cause of epa. Some turbo's in racing applications are suposedly locking up and other problems with m1 extended performance sm rated oil. M1 Extended milage is still sl rated,(and only walmart carries it in my area, the auto stores around me don't have it) along with royal purple, and Last store I was at it was hard to find oils that don't have the sm. Some of the racing oils and diesel are still the good ol sl rating. Only what I'm hearing from the internet though.