can i get a list of oils that belong in each of these categories?
group III, group IV, group V oils??
- Thread starter calvinnnnnnnnn
- Start date
No such thing. We can guess, but only the companies themselves know for sure and they won't tell you straight up.
Although, some will make it sound like they're telling you straight up. But that's a different story. 
They use what's best for the job. Sometimes that's one particular group, sometimes it's a mix of two or three. The best thing to do is to look at what your car needs, look at the specs that the oil meets, and go from there.
They use what's best for the job. Sometimes that's one particular group, sometimes it's a mix of two or three. The best thing to do is to look at what your car needs, look at the specs that the oil meets, and go from there.Quaker State, Penzoil P, Valvoline, RTS all group III
what do you guys know for sure is group 3 or 4, that itself will be good enough
what is valvoline synpower and castrol syntec? those are the two oils i use in my vehicles
Originally Posted By: heavyhitter
Quaker State, Penzoil P, Valvoline, RTS all group III
Motul 300V specifically states on the container that it is a Di-Ester oil. That's Group V.
It runs $30 for a 2 qt container and is worth it's weight in gold not only due to it's basestock but also high levels of ZDDP and Moly.
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Originally Posted By: calvinnnnnnnnn
can i get a list of oils that belong in each of these categories?
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Quote:
Somebody write a letter to Obama....
Originally Posted By: heavyhitter
Quaker State, Penzoil P, Valvoline, RTS all group III
Originally Posted By: calvinnnnnnnnn
what do you guys know for sure is group 3 or 4, that itself will be good enough
what is valvoline synpower and castrol syntec? those are the two oils i use in my vehicles
I do know that from over a year of UOA research, in many, many areas, Valvoline is one of the most shear stable oils. Originally Posted By: FrankN4
Originally Posted By: calvinnnnnnnnn
what do you guys know for sure is group 3 or 4, that itself will be good enough
what is valvoline synpower and castrol syntec? those are the two oils i use in my vehicles
I do know that from over a year of UOA research, in many, many areas, Valvoline is one of the most shear stable oils.
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OVERKILL
$100 Site Donor 2021
Castrol is Group III, at least the Syntec stuff.
Based on looking at Korean MSDS's (the only country that I know that requires PAO to be disclosed in the MSDS), Mobil 1 products contain between 30% and 70% PAO 4 depending on the type and grade of oil (M1 sells over 15 different synthetic oils for automobiles in the USA alone).
But the Korean MSDS does not require disclosure of Group V Esters, so a M1 product with 30% PAO might have 10-20% Group V Ester base stock (but we don't really know).
Originally Posted By: OVERK1LL
Castrol is Group III, at least the Syntec stuff.
OVERKILL
$100 Site Donor 2021
Originally Posted By: chevrofreak
Originally Posted By: OVERK1LL
Castrol is Group III, at least the Syntec stuff.
Originally Posted By: chevrofreak
Except for the 0W-30, which is PAO.
No oil is 100% PAO. It would be useless for engine lubrication if it were.
