I also use the Valvoline VR1 line, and they have a 20W-50 viscosity if you choose, too. I can't speak to using synthetic in a recent rebuild, but I tried synthetic in two of my older cars years back and neither liked it much. Same viscosity as dino oil, but both vehicles started burning oil with the Castrol Syntech I used, so I suspended use. Other folks may have different experiences, but I'll stick with with VR1.
Jeff
Quote:
Originally Posted by X66 714
I use Valvoline VR1 10w30 & a Wix 1st line oil filter. The VR1 is high in ZDDP....Joe
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06-14-2022, 10:17 PM
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