Just got through running PYB10w30 for a full OCI and it was still VERY clean, almost like new at the end. This is the first oil I ever had stay nice looking throughout the OCI. List includes M1 5w20, M1 10w30, VV DB 5w20 and RP 5w20.
Just switched to PU and have no sound/'butt dyno differences to report.
Just switched to PU and have no sound/'butt dyno differences to report.