Hello, I'm sure this has been discussed before but what oil would you recommend to quiet down the valve/rocker clatter on a twin cam engine. Currently using Amzoil 20-50. I know Harleys make noise, just willing to try something different to possibly quiet it down.
Thanks

 

I always had good luck with Redline 20w50. Or try a dino 20w50. Synthetic oil is noisier that dino.

 

You might try a good quality Dino oil. Harley HD360 20/50 or Lucas 20/50 Dino motorcycle oil both work just fine & will quiet things down over syn oils in my opinion. Syn oils are fine but create more valve train noise with Harley motors more often than not. That has been the case with every Harley I have owned.

Ride Safe,
Bill G

 

Going back to HD 360, thanks for the responses.