How is HTHS measured?

[edyvw]

That is one amazing typo.

True

 

[FlyingTexan]

lol, used!
OCI. RL is not long drain oil. They are made for shorter OCI, bcs. ester, and with that higher oxidation.
Then there is an issue of deposits etc. I highly doubt that is an issue with Redline, but track/racing oils don't have additive packs designed for street use. Redline, Amsoil, etc., use more street-aimed additives, but in the case of Redline or Motul 300V (Motul 300V is strictly racing oil, but showed really good UOA in my BMW. But that does not tell all story), the ester base stock oxidizes more (especially RL. Motul is actually really good in oxidation control regardless of ester base stock).
Amsoil is different; they are PAO-based and less oxidative and OCI wise on par approved oils. That is my take.

Ah makes sense. I’d run amsoil if it was on the same type of deal but no way I’m going to pay out of pocket that much for the stuff when there’s QS Euro going for what it goes for. My choices were Redline, Fuchs, Motul, Pentosin, and Liqui Moly. I don’t mind the more frequent OCIs. Cost me $18-$19 with pirateship to send it back (with filter). Figure why not try them out.

 

[scrllock]

Amsoil is different; they are PAO-based and less oxidative and OCI wise on par approved oils. That is my take.

That includes their Euro oils?

 

[edyvw]

That includes their Euro oils?

Yes. I think most of their oils are having hefty dose of PAO.

 

[Elmo Howe]

My favorite is that first paycheck - what the heck is FICA ?

FICA - something today's generation ( and a few preceding generations) will never see.