460 engine oil
From all I have read & searched, there seems to be two schools of thought regarding 460 engine oil - those using 20/50 vs 10w/30 (or similar)
Except in an old worn oil burner or an engine that is being raced, is there any real concensus over which option is better?
I'm beginning to think that there can't be a significant difference, or opinion wouldn't seem so evenly divided