I have a 97 Dodge Dakota 6 cylinder with 200k miles on it.

I just recently noticed a brown gelatin substance that has started to build up in my radiator. Also there is a distinct gas smell in the oil. However I don't see any signs of coolant in the oil. My first thought was head gasket to I ran a compression test. All cylinders are sitting at 147-149 PSI when cranking. So I moved on to the radiator and pressurized it to 20 PSI and let it sit for an hour. When I came back the gauge was still sitting at 20. Any thoughts on where the oil is getting into the coolant from?

 

plenum gasket? common problem on those engines look down your throttle body and see if you can see oil

 

Thanks for the help. It's like looking into the black abyss in there.