97 lumina coolant leak

[hammer]

I have a 97 lumina with a 3.1 and it has a coolant leak somewhere. The only place I can find any evedence of antifreeze or water is in the oil. There are no puddles underneath, no white smoke and no oil in antifreeze. The only thing I find is some milky crap in the oil. Can anyone help me?
Loses about 1/2 gallon everyday going to and from work about 100 miles.

[tractorman]

Lower intake manifold gaskets leaking- your engine is probably toast if you're still driving it with milky oil.

Look around on the site- maybe do a search. This has been covered dozens of times.

[IsaacHayes]

1/2 gallon every day. Holy crap that motor is about to lock up on you any minute man. I bet the pan is so full of water the lower end is shot.