Hello all, I've got a Mitsubishi car with a 4g18 engine that is in use everyday, the oil level would drop little by little each day it is being used.
There are no signs of oil leaking at all, I took out the spark plugs today and found oil on the thread. Is my engine burning oil? Is there a product I can put in the engine so I won't have to do an engine job anytime soon?

 

Check your valve cover gasket and the tube seals. Could be leaking oil into your spark plug tubes.