Steam out of the exhaust . on 1996 Cadillac Seville SLS

My car has steam blowing out the exhaust at all times and i can't keep anti-freeze in it ,but I don't see it leaking on the ground .

by in Cumberland, VA on December 03, 2009
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1 answer 1 comment
ANSWER by , December 03, 2009
You have a blown head gasket. I've used BLUE DEVIL stop leak on 3 4.6 V-8 engines and stop the leak. If you want to save alot of money email me at autoknowhow@gmail .com
COMMENT by , December 03, 2009
I thought you couldn't use Blue Devil in Northstar engines