Oil on cowling - on breakin
Posted: Tue May 17, 2016 9:59 pm
Just replaced 2 and 4 with new Superiors (0-300c) and at hour 3 of breakin we are finding dark oily stain aft of both exhaust, rather than the light tan we used to get. Both sides the same. No work at all done on right side. We usually run Phillips 20-50, running the same but 'M' type for breakin. Could this oil be acting differently? All other performance good, temps, pressure, power, etc.