Engine oil VALVOLINE or IDEMITSU
Valvoline VR1 for the track car. Valvoline VR-1 is a very highly reviewed oil with a high zinc content to keep race engines running with very minimal wear.
I believe the final takeaway was that Valvoline Max protection was the best
I just switched to Valvoline EP 0w20 after using Mobile 1 all my life, for a very important reason...
...the easy to open top with a built in pour spout. So good.
For this reason I run Valvoline 20W-50 VR1 which has high zinc and phosphorus to deal with the extra loads the flat-tappets put on the camshaft vs roller tappets.
I think Idemitsu is the better option if you have access to it. Mostly because it was developed for the rotary engine.
I’ve used a few but the best for me is mopar oil filter and Valvoline full synthetic.
I’ve been using Valvoline full synthetic with a KN filter. Never had an issue
Valvoline full synthetic with max life tech is my current favorite but I think I might be able to unseat him soon.
I personally use 5w50 valvoline fully synthetic racing oil for my r56 and change every 5000 km which is like around 3k miles and it's running good
For the money the best zinc content is valvoline vr1 CONVENTIONAL (not synthetic). It comes in a few flavors.
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