Replace the gasket with a new one.
If it is where the filter meets up to the mount there actually is a gasket there. If it past the mount you may need to replace the filter housing.
it will cost you 200 dollar if do it yourself
take it to the repair shop?
Any gasket or seal on the engine could be leaking. Have it checked by a trusted repair shop.
check and see if the old rubber gaskit is stuck on the oil filter housing
I currently paid around $1100 for head gasket repair on a 1999 Pontiac Montanna. You might get it done cheaper if you don't go to a dealer.
Any where from 1,000 to 2,000 dollars depending on labor and the parts
Go to autozone.com and search in repair info.
Replace the part it is leaking from.
The only repair for a blown head gasket is to replace the gasket.
You cannot repair a blown head gasket, you must remove the heads and replace the gasket.
if you need instructions and diagrams, BUY A REPAIR MANUAL FOR 15 BUCKS