Originally Posted By: Garak
The other part of my point is that there are too many SN/GF-5 high mileage oils already. Some people want a high mileage oil that is thicker within the grade (i.e. an HTHS closer to 3.5) and has anti-wear levels that might exceed SN/GF-5 limitations, and they'd like to do that without having to find a boutique.
I was just looking at this
https://mobiloil.com/~/media/amer/us/pvl/files/pdfs/mobil-1-oil-product-specs-guide.pdf
The M1 HM oils all have 1100 ppm Zinc (1000 ppm P) and a decent spread of HTHS
M1 5W20 HM, HTHS = 2.7, API SL, ACEA A1/B1
M1 5W30 HM, HTHS = 3.3, API SL, ACEA A1/B1
M1 10W30 HM, HTHS = 3.5, API SL, ACEA A3/B3
M1 10W40 HM, HTHS = 3.9, API SN, ACEA A3/B3
Given that vanilla M1 5W30 has a HTHS of 3.1, and 900 ppm Zinc, the M1 HM oils look quite nice to me.
That M1 10W30 HM has my name written all over it, I wish we got that in Oz.