Originally Posted By: tarbasd
If PP was $50 a bottle, I would use PYB, of course, with the same OCI.
Come to Canada, and you'll have that opportunity, at least if you buy at regular price.
@surfstar: That kind of depends. Even if synthetic were the same price as conventional, I'd have considered it a major waste in my old F-150, at least before the rebuild. I went as far as MaxLife blend for it to address the leaks and the fuel dilution, and it did nicely in that regard.
For the Audi, it would have been a no-brainer yes, considering that the thing worked better with a thicker oil, yet I preferred a 0w-XX or 5w-XX for winter starts. So, a 0w-40 or 5w-40 synthetic would be ideal, especially to avoid seasonal changes. And for the record, I did use some synthetics in that, including RP 0w-40, some Mobil 1 5w30 leftovers I had, and Mobil Delvac 1 ESP 5w-40. The 40s were great. It drank the M1 5w30 like water, unfortunately.
For my G37, I may be going to synthetic, because I'll be able to get more Petro-Canada Supreme Synthetic 5w30 with my Petro-Points than I can likely even use. I could use their conventional with my points, but I'd never go through enough points.
So, I really can't completely answer your question, since I don't have an answer myself. If they were the same price, I'd probably be stuck with conventional because the synthetic would always be sold out. How's that?
Synthetics have their place. So do blends. I just like to have what I consider a good reason for my choices. Of course, it's not like my reasons are any better than anyone else's.