I very recently had a valve lose it's seal entirely which led to high oil consumption only 3cyl running with a cloud of smoke behind me and exhaust filled with oil, I don't want to know what my cat
Looks like..
Take the exhaust off of the manifold and stick your fingers in and touch the inner wall of the manifold, if it's thick grime it's oil. If it's just black and gives you black fingers then rubs off easily bolt it back together and go wheeling
