My current favorite is valvoline 5w30 full synthetic. There are oil analysis of new that show it has a high 100 C viscosity and it has a ton of really good additives.
I personally run the valvoline, seems to be a tad quieter on the valvetrain.
Valvoline VR1 has zinc and they make a 20w50 for "race" application.
I use valvoline 5w-30 full synthetic in my g35. Runs great
Valvoline 20w-50 works great
I use Valvoline Extended Protection, it's really good stuff
Currently on valvoline and it does seem good, not sure if it's better than the elf in the short run but long run could tell different results.
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.
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