Originally Posted by PlzRepond
The local Toyota dealer is selling Toyota genuine conventional oil for $2.88 a quart which is a pretty sweet deal as far as I'm concerned. I've heard it's made by Exxon Mobil. Is this just rebottled Mobil super 5000?
I'll answer your question.. I was using the Genuine Toyota oil, 5w20 and 5w30. Turns out (I am going to make the mobil fans angry here) that Mobil was using an inferior base oil that was shearing/thinning out on it's own! I have the UOA's to prove it. It used to be a very good oil, but Toyota doesn't have any control over the base oil that Mobil uses, only the additives they put into the recipe. But again, ever since the stock/base oil changed, it's not something I would have confidence in using.
Yes, this is my own opinion but when an oil thins out on its own after just being in a stored vehicle, that makes me take notice! And to all those who ask if there was leaks, etc.. no, there were no leaks, etc.
I can always recommend what I did go to for my toyota (scion tc, uses the 2az-fe camry engine) is castrol magnatec 5w30. Not sure what grade oil you were looking at, but that's the path I took. And have been quite happy. Actually the Magnatec gets wear numbers almost exactly like the old (good) Genuine Toyota oil did.