If it is not losing coolant I would expect a plugged radiator.
In a vehicle- a blown gasket caused by overheating, block warpage
you may have a bad head gasket its letting oil seep into your coolent have your heads checked for warpage and check the block cracks too.
You would change the head gasket. You would also have the head checked for cracks and warpage. You would also change the engine oil and filter.
Warpage in an aluminum cylinder head is typically caused by overheating, which can lead to thermal expansion and subsequent distortion of the material. This can occur due to prolonged high engine temperatures, inadequate cooling, or a failed head gasket. Additionally, improper torque specifications during installation can contribute to uneven stress distribution, resulting in warping. Regular maintenance and monitoring can help prevent these issues.
Just like you would repair car engine was a blown head gasket. Take it apart and replaced the head gasket. Make sure and have the head checked for cracks and warpage.
There are many factors to be considered in this - what caused the original gasket to fail? Was there head warpage? Overheating? has the head gone "porous"? Was the head skimmed (if needed) or was a thicker replacement gasket used? More info required.
The 1996 Saturn more likely has a blown head gasket. The gaskets will give this problem. If the head is in doubt it can be checked for warpage.
Warping in welding is caused by shrinkage of weld metal, faulty clamping of parts, faulty preparation and overheating of joints. Distortion in welding is caused by uneven heating, improper sequence and the shrinkage of the deposited metal.
With a straight edge and feeler gauges.
Warpage or distortion in a material can be caused by uneven cooling, internal stresses, improper material handling, or excessive heat exposure. These factors can lead to a loss of dimensional stability and shape changes in the material.
waprage is distortion of elements when there is curvature the elements are not perfectly along the curves
9 times out of 10 it's the head gasket on an aluminum engine, usually because of warpage due to overheating. You will have to pull the head(s) involved and replace gasket. A machine shop will have to check cylinder head to see if it needs milled to straighten mating surface. If overheating caused it, will have to fix whatever the problem is in cooling system as well. Check fluid level and se if unusually low and oil for signs of water in it.