Originally Posted By: Joekar
So if I want to do 10,000 mile changes in my gently driven 2008 Tundra these oils you mention above would be a smarter choice than Penzoil Platinum Ultra for the reasons you specify? I'm learning...
I believe in Europe a typical OCI would be about 20,000 miles or 2 years on A3/B4 synthetic oil (or C3 oil with very low sulphur fuel).
All the big names make Euro rated oils, including Penzoil Platinum Euro 5W40
(PP-Euro PDF)
All the best (PP-Euro 5W40, Shell Helix Ultra 5W40, M1 0W40, Castrol Edge 0W40, etc) carry the very high European OEM standards as well, such as BMW LL-01, MB 229.5, Porsche A40 etc (for C3 it's -04, .51 & C30 respectively).
These Euro OEM standards force a much higher quality oil. For example the Noack volatility limit is 15% for API SN, 13% for Dexos, but 10% for MB 229.5 for a more stable and less volatile oil.
The only thing is that none of these oils are ILSAC GF-5 rated, and some like Castrol Edge 5W30 A3/B4 are not even SN rated (they carry about 1000 ppm ZDDP which is above the ILSAC limit) but I still think they are some of the best oils in the world and I would happily run them in almost any vehicle from a mechanical perspective. I would stick to the owners manual inside warranty though.
I think the new M1 AP series finds the middle ground between the Euro long-life oils and the American resource conserving ILSAC oils.