What’s going on with Quaker State Ultimate Protection?

[Jpc1623]

Do you know what the initials stand for jcp?

I have no clue. All I know is that SQ is api new designation, with higher test standards.

 

[Carlostrece]

I am not saying it is the greatest full synthetic there is out there, as a matter of fact it is the bottom of the barrel of the Castrol full synthetic oils they sell here in the US. All I am saying is, for a 0w-20, not 0w-30, but 0w-20, it has a decent vis at 100c of 9.0. For a cheap full synthetic 0w-20, that is thicker than many other 0w-20 oils out there. I didn't say it would flow, I said it was a little thicker than some of the other full synthetics. I hope we have this figured out. Believe me, I know it is not an Amsoil, Redline, Castrol Extended Performance or a Mobil 1 EP. For a 10,000-mile rated cheaper synthetic oil, it is a pretty thick 0w-20, if that is what you are looking for.

I see what you're saying. You're correct that GTX has good/high cSt @ op temp and that was the only thing I'd mentioned looking for in regard to cSt. However, I also look at cSt at cold start and how well it pours cold. I didn't get that indepth earlier because I didn't know we'd discuss cSt this much. I'll be more indepth this time.

I look for a high cSt @ KV100 while also having a low cSt @ KV40.

i.e. - I look for oils with low viscosity (good flow) at startup and high viscosity (less leaks & higher oil pressure) at op temp. Edge & Edge HM have both qualities, as do the other oils I like.

From what I know of GTX, it has a nice high cSt at Op Temp, but doesn't have good flow or low cSt at cold start. At least not in cold pour independent tests I've seen.

I think you're correct in the things you said. So am I. We're not in disagreement, IMO. It's just that I also care about KV40 cSt and pour point (in data sheets, and more importantly in independent tests).

 

[kschachn]

Plus the never ending endeavor of noting that in reality, flow is mostly irrelevant. All those flow tests and fine tuning of supposed viscosity from PDS don't really mean a thing. If the oil flows to the pump pickup then it will flow in the engine. Pick an appropriate winter rating for your starting temperature and flow is no longer a concern.

But people like these county fair demonstrations and freezer tests, so the misplaced worry over flow will continue.