Mine is useless, it says its full whatever is in the engine. Subsequestly I nearly ran it dry one day and now it drinks the stuff, my mechanic guesses is a damaged valve stem oil seal.
#im very worried about mine need to get dan on the case i think. i have used about 5ltrs within about 3-4k obviously excesive amount and i also get a dirty exhaust tip very quick if i go for a hard drive and get black spots over the back of my car. most likely culprit? steam seals