ok my car is having the check engine light on so i added a thing of oil and now it wont run what did i do wron?

You should not be a car owner. Or at least you should have to hood release disabled. Fluids should only be placed into tanks, reservoirs and such as they were designed for. They are not intended to be mixed for any reason.

Your warranty does not cover faulty maintenance or abuse. This might be an expensive repair.

Warranty will not cover this. If you are lucky, the dealer can flush the engine, but it probably won't do anything. Considering there has been anti freeze put into the engine oil more then once, you are going to have a MAJOR problem.

The engine will eventually seize and will have to be replaced. Depending on the type of vehicle, this could run you anywhere from $5000 - $15,000.

Another option is to rebuild the engine. This could be done by an experienced mechanic for about $3000 - $5000.

Check engine light means bring it into the dealer or a shop, the computer will tell them exactly whats wrong with it. And if you put antifreeze into the oil you probably just wrecked your engine.

And no warranty does not cover user error or improper maintenance.

If you're unskilled to the point where you're putting the wrong fluids in the wrong places you really need to leave the car repair to people who know what they are doing. You will only wind up costing yourself more money in the end, and these kinds of problems are not covered under warranty.

Yes it is, it's the same as trying to start a fire under water. The problem that your discrived does not have enough information for a real answer. Check to see if the headlight turn on because it could be the batterie.

Well that engine is finshed