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Thread: OIL Types Used
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Old 12-03-2012, 05:52 AM
robertobaggio20 robertobaggio20 is offline
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Originally Posted by johnniek View Post
I will not use Royal Purple in my BMW. I used it for a few years in my 2003 Yukon XL, and developed a cracked cylinder head. The RP may have contributed to that, and perhaps it didn't, but I have refused to use anything that I used in my Yukon, in my BMW. I will stick with the Mobil 1 0W-40, the OEM BMW Synthetic, and now I may give the new Amsoil 5W-40 European Formula, Full SAP, a try. Thanks.
I believe that amsoil and RP are in the same class in terms of reliability. Considering how cheap mobil1 fully synthetic is, and considering that for under $30, you can even purchase a mobil1 fully synthetic product (extended life) that needs no change for 15k miles or 1 year, I don't see how there can be any doubt as to the way forward.

And your RP would not have caused any cracked cylinder heads.

Last edited by robertobaggio20; 12-03-2012 at 06:43 AM.
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