There was heavy white smoke coming out from the pipe and smelled like carbon monoxide I think. I had to drive the car away from my garage. I drove it for about 15 minutes and we I got home, the smoke was gone. There wasn’t a check engine light. I filled 4 and a half quarts of 5w20. At the time of putting oil I checked the dip Stick and was Maximum but after I took it for a drive I checked it and was minimum. There is no leak no leak and no smell. Can I add more oilSmoking from where? Double check to see if it is leaking fluid.
Tail pipe? Not exactly unusal, if there is coolant in the exhaust pipe. See if it clears up after running it for a little while.
Engine? Not unusal either, if you had split fluid around it. Unless it contonues.