Quote:
Originally Posted by unclebilly
Seems like it’s been a while since we’ve discussed the finer points of motor oil…
I like Valvoline VR1 for my sports cars and Pennzoil Synthetic for the gassers in my daily fleet.
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I've been watching the Lake Speed videos on YT. He's the guy that's running the
Speediagnostix site (like Blackstone, but better). He's a tribologist, and has worked with various companies designing and testing motor oils. Actually, he was one of the guys that designed some of the "Driven" oil in Shaun's post below. I guess back then it was "Joe Gibbs Driven" or something like that.
I've learned so much more about oil than I even knew before (and I'm sure am just scratching the surface.
What I've found interesting is that aluminum engines need oils with moly (molybdenum) because it bonds with the Al, and is a "friction reducer". Iron components need Zinc (ZDDP) which is an "anti-wear" additive (although it actually increases friction). But if you have too much ZDDP, it can/will actually cause premature failure.
Quote:
Originally Posted by Shaun @ Tru6
I have used VR1 forever in my M491 and '73 with a 3.2. Cayenne and BMW get Liqui Moly Leichtlauf. Ducati gets Motul.
A high end shop on the West Coast uses this stuff.
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I've been using Driven DT40 in my boxster for about a year now and plan to stick with Driven oil.
Here's a good video comparing various oils. If I remember correctly, some of the cheap stuff was actually really good (NAPA oil maybe).
One of the things that I am concerned with using most oils is what happens when they change the additive package and I have no idea.
Another good video. I think this Pennzoil stuff is getting very high marks.
and another that might be interesting to some folks.