If your 1993 Honda Civic was low on oil so you added four quarts but an hour later thick white smoke was coming from the tailpipe what do you do?

Answer 1

You best get it into a shop (independent) as soon as possible beore you do further damage, IT gives the impression of a head gasket problem.

Honda Civic takes about 4.5 quarts of oil total so you probably overfilled and it is getting into the cumpustion chamber. Go to an oil change facility and get and oil change or better then that go to your mechanic and find out why you are losing oil

A 1993 Civic only takes about 3 1/3 quarts of oil with the filter. I would drain all of it, clean the dip stick and put 3 quarts in it and restart the engine. Add the the other 1/3 and if you still see while smoke, you probably have a blown head gasket. Look for the oil to look like chocolate milk. If it does, you have water in it and it is a head gasket for sure!