Originally Posted By: Mitsu_Joe
I don’t know if your american 10w30 or 0w20 HM oils contain those high amounts though, I highly doubt it, because I never heard of a 20/30 weight motor oil with lots of ZDDP.
MaxLife here as well as PPHM and M1HM/M1EPHM are now API SN-rated and have lower amounts of ZDDP to protect cats - especially with the propensity of some engines *cough*Toyota I4s*cough* to burn oil as they get older. MaxLife blend also carries the API starburst, and so do the all the Castrol HM oils. I think Edge High Mileage also meets dexos1 gen2.
Interestingly enough, the US/Canada/Mexico M1HM in 10W-30/10W-40 meets ACEA A3/B3 and the 5W-30 grade meets A5/B5. VSML - the new synthetic MaxLife now meets D1G2 specs.
I feel if a HM oil meets new car specs(with the API starburst and a GM dexos1 approval), I don't see the problem using in a new car. There might be a touch of ester or another seal swell agent but not enough to cause detrimental effects and it that was true, it certainly won't pass dexos testing.
I don’t know if your american 10w30 or 0w20 HM oils contain those high amounts though, I highly doubt it, because I never heard of a 20/30 weight motor oil with lots of ZDDP.
MaxLife here as well as PPHM and M1HM/M1EPHM are now API SN-rated and have lower amounts of ZDDP to protect cats - especially with the propensity of some engines *cough*Toyota I4s*cough* to burn oil as they get older. MaxLife blend also carries the API starburst, and so do the all the Castrol HM oils. I think Edge High Mileage also meets dexos1 gen2.
Interestingly enough, the US/Canada/Mexico M1HM in 10W-30/10W-40 meets ACEA A3/B3 and the 5W-30 grade meets A5/B5. VSML - the new synthetic MaxLife now meets D1G2 specs.
I feel if a HM oil meets new car specs(with the API starburst and a GM dexos1 approval), I don't see the problem using in a new car. There might be a touch of ester or another seal swell agent but not enough to cause detrimental effects and it that was true, it certainly won't pass dexos testing.