2006 Chevy Impala 3.5v6. Warning lights = Engine oil level low. No external leaks.
Twice the engine oil level low has come on.i use Valvoline 5w-30 full synthetic oil and change oil and filter every 5,000 miles.there are no external leaks. what is causing this problem?
Is the oil level actually low or not?
The oil level is 2qts low. This is the second time this has happened. There are no external leaks and I know there is no PCV valve.There has to be something internally allowing the oil to bypass.