I highly agree. I had a Saturn that would turn the oil black just by starting it up and running it for 5 minutes after an oil change. Rings were toast.flynrider wrote:But!!, you mentioned that the oil turned black after one ride on your old bike. Well, that's more telling. If I recall, your old bike was one of those Chinese knockoffs, right? My bet is that the piston rings were about to give up the ghost. Black oil after 1 ride (unless it was a 500 to 1000 mile ride) is a sign that you have a problem in the cylinder.