Quaker state full synthetic vs Quaker state full synthetic ultimate durability
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Difference....Marketing Lingo!!
I believe that the Quaker State Ultimate Durability is the old(er) labeled oil. Now just called QS Full Syn.
If I had a choice, I'd choose that one.
Minus any slightly tweaked newer API "SP" formulation, the older API "SN Plus" Quaker State Ultimate Durability and this newer Quaker State Full Synthetic are essentially the same. The kinematic viscosity remains quite high for a 5w30.
Its excellent oil. New or latest specs from Quaker State website today:
If I'm not mistaken, the kinematic viscosity for older API SN Plus version was 11.7 cSt (@ 100 deg C). The VI and CCS viscosities, and perhaps other data points, didn't change much either, if at all.
Gosh... this is good stuff. Here in Alaska, it does well in every GM product I own.
Its excellent oil. New or latest specs from Quaker State website today:
If I'm not mistaken, the kinematic viscosity for older API SN Plus version was 11.7 cSt (@ 100 deg C). The VI and CCS viscosities, and perhaps other data points, didn't change much either, if at all.
Gosh... this is good stuff. Here in Alaska, it does well in every GM product I own.
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Quaker State Full Synthetic is API SP whereas Quaker State Ultimate Durability was API SN+.
So it is better now?
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"Better" I honestly cannot answer, I'm guessing a more current add pack that meats the newest API standards. Me personally, I would go for the newest formulation. I'd guess it should be better since lubrication is an ever-evolving technology
Basically. Also d1g3 approved which is an improvement over d1g2. But gm only gives it to 0w-20 and 5w30 grades not 5w-20 or 10w30 which I think is silly.
I am running the 10W30 in a 5W20 application and its is fantastic. Can't say enough good about it.
I will avoid high VM ( vii) treatment if I can, they are vanish sludge and gum makers, thus the 10W-Xx.
GM doesn't spec a 10W30 or 5W20 so no Dexos in those grades. Those grades are more of a FORD thing.
I don't chase DEXOS approvals, it has never done anything for me that I could tell. Whatever that means
True but generally a newer approval is gonna mean a better overall formulation but not always. But I'd still happily run the non dexos grades in my 2021 anyway and expect the engineering or manufacturing to be the reason for a failure and not the oil.I am running the 10W30 in a 5W20 application and its is fantastic. Can't say enough good about it.
I will avoid high VM ( vii) treatment if I can, they are vanish sludge and gum makers, thus the 10W-Xx.
GM doesn't spec a 10W30 or 5W20 so no Dexos in those grades. Those grades are more of a FORD thing.
I don't chase DEXOS approvals, it has never done anything for me that I could tell. Whatever that means
If you are worried you can search all over and find the older spec oil SN+.
Oils are always improving in general.
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