Anyone here run Royal Purple in their 22r? I just did to mine the other day and notice even more valve noise even when warm and no other difference..not my imagination either. Has anyone noticed any quirks with running synthetics at all?

 

I notice that royal purple is annoying because it looks dirty out of the bottle. Once was enough, never went back.

 

Yeah I thought the same thing, but on the dipstick you can tell it's actually pretty clean though with a purple tint versus an amber tint.