Originally Posted By: BTLew81
rg...great reply. My reply is in no way to flame or say you're wrong, it's just some thoughts from my end. Take it for what it's worth...
As far as "approved oils" go, I certainly see the point of using them if something big goes wrong. What are the chances of this? Who knows, honestly. Pretty slim, I would imagine. However, my point is that VW 502 is not a really "stout" spec. I believe one of the biggest things is an HTHS >3.5. So, as you well know, a lot of oils fit the bill. On top of that, there are a LOT of oils out there that while not approved, are as good or better than some of the VW 502 oils in some ways. That being said, M1 0w40 and GC are two approved oils that are fantastic. I'm running a short interval of M1 TDT, and then the decision is...GC, M1 0w40, Castrol 5w40, or the 504/507 Castrol SLX, which is a 5w30, but approved. Or maybe T6 or TDT.
Funny thing is, I can get the SLX for 6.60/liter, plus minimal shipping. It's approved, a bit cheaper than off the shelf stuff if it's not on sale, so maybe I'll be "safe" and go with that. Decisions decisions...
I know what your saying.
Like all things in life, it's a personal choice to make!