Push down and turn counter clockwise. Only when the engine is cool though. Will burn you bad if you take it off hot.

If you can't do it, then take it back to your mechanic and let HIM do it.

Walk until Monday.

JES has it right. DO NOT REMOVE HOT!!!!

I KNOW this IS a dumb question as I can change, oil, battery, etc. My mechanic can do it and showed me how, BUT..... I STILL can't do it! Push down and turn, which it will do easily, but.... WILL NOT WORK! IT NEEDS COOLANT "NOW." HELP - Thanks!