It would most likely be the head gasket as there is water in the oil. The rings would lose compression.
Probably head gasket or cracked head or block.
Most likely the head gasket. For sure not the rings. If you have aluminum head and the engine has been overheated, then a cracked head is likely. Also there are some weird engines are out there. IE some of the GM Quad Four engines have a water pump that is driven by the timing chain. If the seal goes bad in that pump, then water will leak directly into the engine. btw, that particular water pump is probably the worst and hardest water pump replacement job known to cars.
Good Luck Rick
Hopefully, it's the thermostat... but, if the engine has seriously overheated it could be a damaged head gasket caused by a warped head. Engine heads will warp slightly when the engine overheats, then there is insufficient pressure on the head gasket and the gasket will leak.
You can change the head gasket by removing the valve cover. Remove the gasket and clean the gasket surface. Put the new head gasket on the cleaned surface.
Coolant leaking into engine oil? Leaking head gasket Run engine to normal operating temperature pull oil dipstick and let a drop fall onto hot part of engine - oil will smoke coolant will sizzle
What gasket?
Yes there are sealers out there that can be used to seal or repair the gasket
Blown head gasket
The oil dipstick has a small gasket at the bottom of the dipstick. Replace the gasket with a new one and the oil should stop leaking.
At the end of your dipstick female part (part that stays in engine when you chkng the oil) you have a small rubber seal.
ON a oil dipstick its a sure sign your head gasket is blown. I was lucky once on a camaro where it was just the intake head and not the cylinder head
When oil and water are combined in the engine it will form a white frothy mixture which will be evident on the dipstick. Definate indicator of a blown head-gasket
It's supposed to do that.
There are several possible indications of a blown head gasket: If the head gasket is blown between adjacent cylinders there will be poor or no compression in either cylinder. Poor compression in any cylinder can be caused by a blown head gasket. That condition can also be caused by a burned valve or piston. Coolant in the crank case can be caused by a blown head gasket. Compression in the coolant can be caused by a blown head gasket. An engine with a blown head gasket usually loses performance and runs poorly or not at all.
water mixed in oil, check dipstick, looks milky in color. quick overheating. visible leaks around head gasket.
Most likely blown head gasket but for some reason you have water or coolant in your oil
water in the oil. cracked head maybe or it could be just the head gasket
Could be a number of things, the thremostat could be stuck shut, preventing coolant flowing through the radiator. It could also be the head gasket (check for coolant loss and mayonaise like gunge under filler cap and on dipstick). COuld also be an airlock or blockage in the cooling system.
ckeck the oil dipstick if the oil has a color like chocolate milk the oil has water/colant in it which means the head gasket is blown and its leakin water into the engine block