Reviving an old post; what's the attractiveness of the 20W-50 weight of the VR-1 Valvoline. I've had it recommended to me by very experienced Mopar mechanic, and I know a lot of wise Mopar people who like it. I'm just wondering, aside from the Zinc content, what's the advantage of the weight?
Would you recommend that weight in my stroked 360, hydraulic roller cam, Florida temps, no racing, just some occasional heavy footed street driving?
