Any QSUD users here?

We would need to see updated VOA for this new non-UD version of their FS to be convinced it is the same formulation, additives, etc. Otherwise I'm just going to assume it has been downgraded to vanilla synthetic that meets the certification specs.
Yes, that ULTIMATE wording really gave it special powers beyond FULL

Vanilla
synthetic is sooo boooring. Where is the Coffee Rocky Road with a Red Bull booster?
 
I use a bunch of it. Is it DEXOS approved? Not sure...
DEXOS the Ruler or Motor Oil !
zeus.webp
 
Have used it in ALL vehicles in signature atleast once. Presently in the Taurus 5W30 flavor. Always made any and all engines purrrrrrrrrr!!! Good oil at a Great price!!!!
 
For the first time, possibly ever, I purchased Quaker State. High Mileage Full Syn 5w20. For my '02 Taurus that burns about a quart per 5,000 miles. $19.xx at Wal-Mart. They were out of Supertech in most grades. Seriously. Hardly any at all. And there sat QS in its green bottle, ironically "the color of money" for which it commanded relatively little.

This oil is a golden color, like a blonde rue and as irrelevant as it may be, poured like a 30 in high 80's weather.

My engine hasn't blown up yet after 4 days so it is an absolutely wonderful oil!
 
I'm thinking my next OCI's will be QS Euro 5w-40. SuperTech 10w-40 is no longer stocked at my local WM's (although it can be ordered and had in three days).
I picked up 2 jugs today at WM (the old stuff). They had 3 and I should have bought the last one. :confused:
 
We would need to see updated VOA for this new non-UD version of their FS to be convinced it is the same formulation, additives, etc. Otherwise I'm just going to assume it has been downgraded to vanilla synthetic that meets the certification specs.
The new stuff is no longer API SN+. It's SP and the ZN has been reduced. Everything else looks the same.
 
QSFS 5W-20 is in my car now. As far as I can tell, It performs exactly the same as previous oils did in this car.
Decades ago QS ruined the engine in my truck engine and so will never use it again.
QS of the late '80s was one of the few brands of 10W-40 that tended to form sludge in my '81 Mazda. Their new stuff is a little different.
 
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