Valvoline vr1 oils

Iv'e always run vr1 20w50 and a new motor for a buddy is gonna run vr1 10w30 because clearances are a little tighter in his motor, but had some racers and engine builders say a straight oil is the way to go like vr1 30wt instead of 10w30 and why would one run vr1 50wt vs. vr1 20w50 ? at the local parts store i ordered a case of valvoline vr1 20w50 racing which i thought was vr1 and it was a 100 bucks a case i never seen this kind before its valvoline 20w50 racing in a black bottle and says not street legal and its not vr1 i looked it up on the valvoline site and it says for racing engines only, anybody try it ? it was $37 more a case than vr1 20w50

I think that's the full synthetic oil........I think

no its not synthetic its part #vv851 the synthetic 20w50 is #vv855

Contains increased amounts of ZINC and PHOSPHORUS (ZDDP) for extra engine protection. (needed for flat tappet cams!)


Ace

Zinc is good

So i guess even more ZDDP than vr1 like ace said, and whats ur opinion on straight weights vs. split weights ? some believe straight weights are more consistent in bracket racing. Well opinions are like////well you know everybody has one,i always had good luck with zr1 20w50.

Black bottle with a blue label (VV-851)? What I have read about it is it's a conventional oil with increased zinc and reduced detergent levels. With the increased zinc levels is probably why it's not street legal because of damage to catalytic converters and pollution to the environment.

Yeap Doug thats it, i guess a step up from vr1 with more zinc which i didnt really need, good ole vr1 is fine like always.

I use to use VR-1 (20w50) and it's great stuff, from the dyno through the first year. After that I changed over to Royal Purple 51 (20w50) and I buy it in 5 gal. containers. I'm not trying to push Royal Purple but if you want a good deal on 5 gal. containers, Car Shop Inc. is the place to go. $284.95 + $35.19 shipping to me. If I order it from the big box store like Jeg's it's $348.57 + Free shipping but $13.99 for handling. Saves me about $45. Summit is about the same as Jeg's except I would have to pay a State Sales tax because we have a Summit store in Georgia.

A high detergent oil is best imo. which ever grade/brand it might be

I've run VR1 20/50 before with decent results but the race motors ALWAYS get Kendall 50....