Originally Posted By: CaptainBiggles
For what it's worth, you guys may remember me as the "thanks everyone for all the help" dude a few months back, pouring Mobil 1 Extended Performance into his Sonata.
Well, I'm a few oil changes in now, and I also keep my own notes and recording keeping with Carfax.
Brought my car in for that Seatbelt recall thing, the service guy had a fit that I was using synthetic. We use synthetic blend but it doesn't even really need that, he tells me. And it HAS to be QuakerState (or inferred QS is the best option because it's what they use).
Basically the same speech the original poster guy made.
Well, sorry buddy, I use OEM filters and follow the recommended owner guide, but I'm pretty happy with my M1 over the QS the book says I should use.
It's all marketing and about how much money they receive back from the oil manu.
Any oil, as long as it meets the spec in the owner's manual is fine to use.
Personally, whatever oil is cheaper to purchase that specs out is more than adequate for use. Conventional vs synthetic is basically a option and the syn, imo, would be best if you plan on doing long oil runs mileage wise.
Just so you know, before you upset the Mobil boys,
MOBIL is spelt this way, not Mobil.