Engine Cooling problem
1997 Jeep Cherokee 6 cyl Four Wheel Drive Automatic 173300 miles
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I bought this poor old abused Cherokee 3 years ago for my kids to use and have had to replace a lot of things on it, fuel pump, fuel filter, battery, etc. It's been getting great mileage and sounds OK. Tonight I was cleaning the battery terminals and checking all the fluid reservoirs when I realized the antifreeze reservoir had about 80% motor oil in it. Before I spend any more maintenance $ on it, is it repairable?

You sure about what kind of oil it is? Can also be tranny fluid, the radiator side tank cools the tranny, and may have cracked inside...if this is the case, replace the radiator and flush out the block. Have you pulled the engine or tranny dipsticks yet? Which one is low?