Super Tech High Mileage Synthetic Oil

I wouldn't run a 20 grade oil personally, especially from Warren oil, but it's a BITOG favorite for sure, and you'll be hard pressed to find people who will admit to issues running it here. I suspect there are some issues but you won't find people admitting to them.

If you do a search, you'll find some good threads.

Why not use Supertech for everything?
People with high mileage who run SuperTech

Here's a link to the SuperTech PDS. 12% Noack. Yeah, no thanks.
Nah......12%.....many Valvoline products have 12%.....they just state "less than" 15%.

Nothing wrong with ST
 
Yeah, just not that Super or Tech 😷
Going to be a battle coming over EHC - soooo …
I might be wrong, but Dexos standard for current gm vehicles HTHS is 2.9....this SuperTech 5w30 shows 3.2 for HTHS, above board in that regard at least.

EHC?
 
I might be wrong, but Dexos standard for current gm vehicles HTHS is 2.9....this SuperTech 5w30 shows 3.2 for HTHS, above board in that regard at least.

EHC?
EHC is ExxonMobil’s GrpII+ and used on top of GrpIII and still able to be called “synthetic” in the USA. It is assumed that Super Tech, Kirkland, and even Mobil’s Mobil Synthetic - and of course Delvac HDEO use what they can to maximize profits …
It’s produced in Texas - so I expect more pressure than ever to maximize production …
 
EHC is ExxonMobil’s GrpII+ and used on top of GrpIII and still able to be called “synthetic” in the USA. It is assumed that Super Tech, Kirkland, and even Mobil’s Mobil Synthetic - and of course Delvac HDEO use what they can to maximize profits …
It’s produced in Texas - so I expect more pressure than ever to maximize production …
Thanks for that info.

I am not on the train of "synthetic or bust".....what ever works IMO.
 
I put 118k miles on it before I traded it in for my current car (they made offer I couldn't refuse), and engine was clean as a whistle with very little oil consumption (1/2 qt per 5-7k miles).
Hard to argue with results.

A plan to run Valvoline Restore and Protect every 100k would be a viable option honestly, if someone wanted to save money.
 
Re-refined according to warren

Screenshot_20250708-211803.webp
 
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