What is the cause of this? This is fresh oil with six 1/8 mile test hits. Amsoil 10 40. The oil looks black. the picture is right as I tilt the bucket to one side and let the oil flow to the side. You can see all this soot in the oil. Is it contamination from blow by as I did have a cylinder leaking down. I was just running e85 for the first time.
