At my last oil change the guys said that my coolant was horrible so I had them flush it. Well, yesterday I had my oil changed and the guy says the same thing. So I tell him I'll deal with it. I went home and looked it over and the coolant in the plastic fill jug, I don't what it's called, looked worse than what was in the radiator. So I drained it into a coffee can to look at it. Well the two fluids separated and what I saw was the coolant and this dark gray/blackish fluid in there. Looks like oil with the film that it leaves. This car has been notorious for losing coolant for years. every few months I'm adding coolant. Have never found the leak so I have just added when needed. Anybody seen this? I'm thinking head gasket or something like that, but I'm no expert.

Also, have not seen milky oil in the crankcase ever. Don't know if the oil change guys look for that when they change the oil though.

Thanks,
Bill

 

had the same problem on my wifes 96 cutlass..turned out to be the intake gasket....just a thought

if coolant is getting in the oil, it will show up milky also, and kinda bubbly on the dipstick..not to mention the level will rise. I would have the co0ling system pressure tested.