Hi all,

Not having a good day and need some help.

Ran some errands in the car and brought it home. Sat about an hour in the garage. I proceeded to an oil change (probably involving sitting for another 40 minutes). I started it up for about 3 minutes after getting the oil re-filled. Checked oil level.

I then proceeded to drain coolant which was warm but not hot. Refilled with a Prestone flush cleaner and water.

Started car and backed it out - all was well - made sure the water was topped off after water pump kicked in and coolant was flowing.

Later tonight I took the car out for dinner. On the way I noticed all this white smoke coming out of the tailpipe. To me this signifies coolant is burning in the engine. Does this mean I have a cracked head?

Oil does not appear to have water in it. Coolant reservoir still appears full. It may have been driven about 12 miles like this.

Is there any other issue(s) other than some catastrophic internal issue? I have flushed other coolants and never had an issue. The engine was not super hot when I did this but perhaps it needed to be totally cold?