I changed my oil a couple weeks ago and recently checked it and it seemed a little low. I put in around 3/4 of a quart and it seemed fine. However now it is at the top of the "F" past the hatch mark zone. I was wondering if overfilling it a little is going to cause any harm. If so I'll just change the oil again. My dipstick sucks and is kinda stained brown and its often really hard to see where the oil is on it. My engine was recently rebuilt so I shouldn't really be seeing any significant oil change.