Random Musings : After looking at BITOG VOA's & UOA's you see a trend with the D1 / Gen 2 compositions :
*Moly
*Titanium
*Boron
*Calcium
*Magnesium
All the D1 / Gen 2 oils now seem to have similar make ups now - the exception (as I see it) being whether Titanium is used or not and secondly - how much Moly is contained as well as what kind of Moly is used ?
More Boron appears in the so called Tier 1 oils as well as the use of Titanium ... Calcium and Magnesium appear to run fairly similar among the D1 / Gen 2 rated oils . *As stated before here - a VOA / UOA doesn't tell you everything about an oil composition but as I see it - the below is how I would rate the current crop of WM bought popular D1 / Gen 2 Synthetic 5W30 Oils (based again on BITOG VOA's & UOA's) :
1A. PP
1B. Castrol Edge (non - EP version)
1C. Valvoline Advanced
2A. QSUD
2B. Castrol Magnatec
2C.. *Mobil 1 (non - EP version)
3A. Super Tech
3B. Havoline
*On paper M1 vanilla appears to be absolutely nothing special for a 5W30 D1 / Gen 2 rated synthetic oil ? ... I try to give M1 the benefit of the doubt that there must be more to the composition than what shows on paper ... The first and 2nd tier D1/Gen 2 oils may be closer together in composition than at any other time of oil ratings.
*Moly
*Titanium
*Boron
*Calcium
*Magnesium
All the D1 / Gen 2 oils now seem to have similar make ups now - the exception (as I see it) being whether Titanium is used or not and secondly - how much Moly is contained as well as what kind of Moly is used ?
More Boron appears in the so called Tier 1 oils as well as the use of Titanium ... Calcium and Magnesium appear to run fairly similar among the D1 / Gen 2 rated oils . *As stated before here - a VOA / UOA doesn't tell you everything about an oil composition but as I see it - the below is how I would rate the current crop of WM bought popular D1 / Gen 2 Synthetic 5W30 Oils (based again on BITOG VOA's & UOA's) :
1A. PP
1B. Castrol Edge (non - EP version)
1C. Valvoline Advanced
2A. QSUD
2B. Castrol Magnatec
2C.. *Mobil 1 (non - EP version)
3A. Super Tech
3B. Havoline
*On paper M1 vanilla appears to be absolutely nothing special for a 5W30 D1 / Gen 2 rated synthetic oil ? ... I try to give M1 the benefit of the doubt that there must be more to the composition than what shows on paper ... The first and 2nd tier D1/Gen 2 oils may be closer together in composition than at any other time of oil ratings.