Detroit Diesel 8 V 92 coolant in oil pan.

Coolant tank empty. Oil dipstick way over full level. Milky gray color. No idea when this happened. I believe, while parked and cold, but I've been told that's almost impossible. One or two people have said, the engine had to be running when this happened. Been parked for several months. Last drive was a very short, 2 mile, 20 minute fuel fill up. Engine has always run smooth and strong. Less than 180,000 miles on it. Need everybody's input, please? Anything you can tell me, I will appreciate. Don't assume I know anything. Cause I don't. Thanks.

 

Thank you for your quick reply.

 

You're right. Thank you.

 

Thank you, but please don't assume that I know the rest. Cause I don't. Are you saying, that if a frost plug pops, that opens a seal, and the coolant can travel down from there? Please tell me the rest? Thanks. How many frost plugs are there? My 8 V 92 is turbocharged, and intercooled. Don't know about a supercharger.

 

How do you access the frost plugs? How do you inspect them? Directly? Or, does everything above them have to be removed first? How do you replace the frost plugs? Is the oil galley the same as the oil pan at the bottom of the engine, or a different area? How many frost plugs are there? How does tbe coolant freeze in the block? Just asking, cause it is antifreeze. I know that's just one possibility out of many. Got to find out which one. But, nighttime temperatures have been below freezing a couple of nights. Not super cold. 20's some nights. Thanks. Your help is GREAT.