That is common on the vortec engines when the intake manifold gasket blows on the inside. It dumps engine coolant into the oil pan. It sounds like you had a water leak
and you kept adding coolant with out knowing it was going in the oil pan.
Your engine is now junk, because antifreeze destroys engine bearings. It was probley overheated too.
Now if you did not over heat the engine at all, I mean at all. Then you can pull the
engine and take it all apart. Replace all bearings, cam bearings,rod bearings, main
bearings, but most of all it would have to be cleaned like never before. NEW OIL PUMP and all new gaskets. If you don't do this kind of work, Then your best bet would be a new long block.
You don't put water in your radiator, you put antifreeze.
To get the proper 50/50 ration, I used an old quart tupperware container. I first poured water, then anitfreeze, then water, then antifreeze, until the system was full.
No, but you do need the full 50-50 mixture of antifreeze and water to get the maximum cooling and freeze protection.
It will overheat because the water is needed to circulate/transfer the heat.
1/2 distilled water 1/2 antifreeze to the full line in the overflow container.
Coolant container will say if it is pre-mixed or full strength. If full strenght, mix it 50/50 with water. Pre-mixed coolant can be added "as-is"
A mixture of 1/2 distilled water 1/2 antifreeze to the full line of the radiator overflow container.
your oil resevoir is to full
Drain & flush the system completely. Now add a 50/50 mix of antifreeze and distilled water until it is full. One gallon of antifreeze mixed with one gallon of distilled water should be more than enough.
You should never add full strength coolant to any vehicle. Always dilute it with distilled water
Buy some RV antifreeze (the kind that is safe for pets) and pour enough into the drain to ensure the piping is full back to the main body of water. You may have to mix the antifreeze 50-50 with water.
There is a reservoir container marked "coolant" in the engine compartment. Add a mixture of 50% antifreeze and 50% water. (If you use "50/50" or "pre mixed" antifreeze, DO NOT ADD WATER). Let the engine get warm and fill to the full line.