Poured a gallon of antifreeze in oil input top of the engine after draining the oil. Did not start engine. Left open to dry out. A friend needing money did this, but I put the 50/50 next to a quart of oil, I had left the gallon of oil in the trunk.
I'm being told I was lucky that he caught the mistake. It is supposed to be OK in the morning to put the oil in, but I said wait till 12.
What should I do really?
If you had enough antifreeze in the oil to foul your filter, then you have too much antifreeze in your oil for safety.
Drain again, change the oil again. Sorry, but otherwise your antifreeze+oil will become milkshake/mousse in the crank, plug oil channels, and then destroy your engine.
If you did not start it and all the antifreeze drained out then fill with oil and you should be good to go.
Your engine might need more than a quart to fill to the correct level though.
Once you have run the engine with the fresh oil, check that it is not contaminated by antifreeze just in case some did not come out. If so then change the oil again.
If you don't drain out the reservoir out then you can run the Anti-freeze in the system the anti-freeze will actually set on fire, just not immediately. once it reaches a temp of about 650-750 degrees Fahrenheit it will though. If it has gone through the oil filter, then it will have to in fact be replaced. the insoluble will clog the filter which would start to cause damage to the engine. you'll notice if it's clogged if when it runs then the engine sputters and occasionally belches black smoke.
If you didn't start the engine, how would anti freeze get into the oil filter? Altho, if in doubt, change the oil filter, cheap enough.
