Valvoline VR1 ??
 

I have been running Valvoline VR1 racing oil in my other race cars because it has the extra zinc(etc) to protect the valve train during racing abuse. So what should I use?

I run 50 wt during the summer and 20-50 during the winter months in SoCal.

I have used Castrol GTX 20/50 year round with no oil related issues since '92 when I began driving rotary's

+1 on Castrol 50 wt. Its worked for me for years now. Not racing mind you, but
running to redline often enough.

I go with Royal Purple myself, but I have never seriously raced, and it is primarily on my daily driver rotaries.

From what I've read Royal Purple is waaay overpriced. But it's not common in Aus yet. I was running penrite oil previously but my mate swears by the castrol GTX so it's probably what I'll run in the new engine.

I have ran vr1 20w50 and st50 for years in my dd and exclusively ran 50w in our race cars.

Mobil 1
5w-50

Used it for like 100 years! It is the ultimate engine oil :bowdown:

It is just slightly more expensive than Mobil 1 in this area. I didn't take into consideration location.

@rxspeed7 - thanks