I'm not sure if there is an engine level warning light in the engine. Most of the time it is just a engine oil pressure warning light. It comes on when oil pressure drops below a safe limit. Among other things it can also mean engine oil level is low. When it will come on, i don't really know. But oil would have to be seriously low for it to come on. The oil is much, much lower mate and will never be visible from the filler neck. It is present in the crankcase, not in the filler neck. Cheers.