Myself I have used Valvoline oil since I started working on cars in the early 70's. When the VR1 racing oil came out I started using it and have used it for years. I have never built a roller cam eng for myself as all my engines have been and still are flat tappets. And knock on wood I have never had a cam wipe a lobe. Course I do make sure everything is working right like making sure all the lifters are rotating and so on. Right now I am running the non synthetic Valvoline VR1 20W-50 racing oil which I usually run in all my engines. I have always had great results with the Valvoline oil so stick with it since it has worked great for me all these years. Ron