My engine has stopped functioning. It's over due for an oil change. About 2 weeks ago the engine/car started making a taka-taka noise, like something was hitting against something. And yesterday, it stopped working while my brother was on the free way.
I added 3 qts of motor oil last night and it still wouldn't work this morning. It sounds like it's gasping for air (as if it were the battery--which was replaced in October) and than a metal scraping on metal noise(high pitched).
What can it be? Is the engine? Or alternator? Or have I ruined my car for good?