Need a little M1 help

Joined
Jul 16, 2008
Messages
862
Location
Massena, NY
Alright guys. Does anyone know the difference between M1 5w30, 5w30 truck and suv, 10w30, 10w30 high mileage and 0w30 AFE? Besides the viscosity I'm looking for a solid 7500+ drain for the winter.
 
Joined
Apr 18, 2008
Messages
1,093
Location
Kentucky
5W-30 TSUV is the same base oil, same HTHS, same 40c and 100C as the regular 5W-30. The difference is a "little" more moly, a "little" more boron, and somewhat more antioxidants. M1 10W-30 has 800 ZDDP, HTHS of 3.14, 100C cSt of 10. M1 10W-30 HM has 1000 ZDDP, HTHS of 3.66, 100C cSt of 11.7. It is a somewhat stronger/heavier duty oil. I know nothing about the 0W-30.
 
Joined
Jun 17, 2009
Messages
70
Location
CONUS
I have been using M1HM 10w-30 in my Jeep 4.0L for awhile now. The higher ZDDP is better for the flat tappet engines. Just because it says "High Mileage" doesn't mean a new car can't use it.
 
Joined
Jan 18, 2009
Messages
1,081
Location
oklahoma
In the 4.7 sludge-prone motor & an extended OCI, I would run 5w30 full-syn oil. I am not sure if they are making the M1 5w30 in HM formula yet or not? But if I had a 4.7 I think I would change back to the oil 5w30 dino 3k OCI because of all the worries about those engines. There are more factors that come into play. But if you do run an extended interval, then you are correct to want a full-syn oil; especially for that vehicle in my humble opinion.
 
Joined
Jun 22, 2008
Messages
282
Location
Central Valley, CA
The M1 10w30 HM is an ACEA A3 long-drain, higer-HTHS oil that would be better suited to extended OCI's than the others, except MAYBE 5w30 EP. If you have to worry about colder temps, then give German Castrol a try. It is a forum favorite & a fantastic oil that is working very well in my '08 4.7 with 7500+ mile OCI's under "severe service". Thinking about trying the M1 10w30 HM or M1 0w40 next time around in the Dodge for the [censored] of it.
 
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