Quaker State. And it's a Group III based oil, not PAO.quote:
Originally posted by GoHack:
Who makes the Walmart SuperTech 100% Synthetic oil?
Hi, SF. Any Pennzoil on the shelf that is SJ rated is old stock. All their current oils are SL rated.quote:
Originally posted by superfreak:
Supertech is a good oil as it is Approved by SAE and API in the SL rating. The rating for the oil by api is higher than Penzoils full synthetic rated at (SJ) at about 30% price differnece. I use it exclusively and it does what it is suppose to do.
Good point (presumably blended with an ester to promote controlled seal swelling and miscibility since PAO and Group III, alone, go past seals like "stuff" through a goose). Somewhat analogous to recent and persistant ramblings on this site about the German Castrol Syntec 0W-30 (SLX) wunder oel also composed of Group III and ester too, huh? Another danged genuine imitation synthetic...quote:
Originally posted by G-Man II:
And it's a Group III based oil, not PAO.
Big difference, though. IF the German Syntec (Formula SLX) has Group III, it's no more than 20%, the remaining 80% being esters. IF the Supertech oil has esters, it would be 10% at most.quote:
Originally posted by Ray H:
Good point (presumably blended with an ester to promote controlled seal swelling and miscibility). Somewhat analogous to recent and persistant ramblings about the German Castrol 0W-30 German (SLX) wunder oel also composed of Group III and ester too, huh?quote:
Originally posted by G-Man II:
And it's a Group III based oil, not PAO.
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The pour point is behind my deduction of the percentage of esters in the German Castrol, and MolaKule has confirmed the soundness of my reasoning.quote:
Originally posted by Ray H:
You're probably right, G-Man II. My inadequate reasoning powers are still stuck on the problem of possibly excessive seal swelling from that 80% concentration of ester, though. Where did the notion of that high a concentration of ester come from - Castrol or Kentucky windage?
The SAE and API oil grading and rating systems are are implemeted with a 'self-policing' policy. The oil companys are trusted to make sure thier oils actually meet the required standards, but there is no mandatory outside testing done by either the API or SAE unless a specific problem is being investigated, such as the recent viscosity problems with the Coastal Uni-Lube sourced oil available as house branded oil at Auto-Zone and Discount/Advance Auto Parts.quote:
Originally posted by superfreak:
...Supertech is a good oil as it is Approved by SAE and API in the SL rating...