Quote Originally Posted by miko101130 View Post
my vote goes to 0w40... top of the line from mobil 1 range of products...

oil that holds up better under the high heat and oxygen present in the crankcase, a quality called “oxygen stability.” Since this means a reduction in the portion of the oil that is susceptible to oxidation, it actually reduces the acids in the crankcase.

though the zinc and phosphorus are not high as compared to previous line up,, mobil 1 has those ashless additives... which makes it retain TBN longer...
0W-40 cost P50 less than the 5W-40 ESP. I guess I will have to return the ESP. Also the 0W-40 has passed a lot for tests (ie. API, etc..). The 5W-40 only passed that "stringent" MB (benz) 229.51

I'm really annoyed at Mobil for making such confusing products.