I happen to be an oil rep and a racer. I would flush the engine out as stated. If you have had PAG oil ( Polyalkylene Glycol) and PAO ( Polyalphaolefin) those 2 do NOT like each other at all and needs to be throughly cleaned as stated. Some oil lab coat guys even say you shouldn’t ever even switch them however I will admit to doing so.
There seems to be a 50/50 split of both kinds of oil that are “kart oils” so chances are Very high of having one or the other previously in there.
There seems to be a 50/50 split of both kinds of oil that are “kart oils” so chances are Very high of having one or the other previously in there.