Originally Posted By: sunfire
Originally Posted By: mechanicx
I recently had an used oil analysis of Quaker State conventional done by OAI and it had much more boron and moly. I've been using the QS for awhile so the moly and boron had to have come from the QS. I know it wasn't Quaker State Horsepower, but it seems like it would have as much moly and boron as Quaker State conventional. Maybe a bad assumption but do we know if Quaker State Horsepower would have less? If not, I wouldn't put it past B-stone just giving known old, generic numbers for Quaker State Horsepower and not even testing the sample.
That's why you don't tell the the oil or even the grade. Make them determine it from their tests. If they give you numbers that are completely bogus. Ask them to retest.
Yeah good point. In the case of my used oil analysis, OAI didn't know it was Quaker State. The form asked for the manufacture of the oil and I wrote in SOPUS lol.