Oil around my spark plugs on 1997 deville - 1997 Cadillac DeVille

Need to replace plug access o rings. you have to remove the valve covers to get to them. you can get gasket kits that contain the parts you need.they are at the top of the motor so you don,t have to remove much stuff to get at them. mark your plug wires with masking tape or something so you can put them back in the same hole they came from.all the fasteners are pretty easy to see so you can tell what needs to be taken out. keep track of what bolts came from what holes in case they are not all the same. do only one side at a time so you pull the same fastener out of the same place on the other side to see what it takes if you get them mixed up. clean all the gasket grooves and mating surfaces before you go back in with them. any dirt left will cause it to leak so this is important! also don,t use any sealers on the new gaskets unless it specifies it in the gasket kit. if you are not going to replace them, before you put the plug wires back in, clean them well to remove the oil and dirt on them. also lube the plug wire ends with diielectrict silicone grease. dont use any other type cause it will break down and conduct electricity after a few months of motor heat and cause a direct short in the plug and a dead miss. about once a week i have to replace a set of plugs and wires that should have lasted 100,000 miles but only lasted a few months cause some fool put the wrong grease on them. be careful not to drop anything down into the motor and clean stuff up before putting it back, especially the gasket surfaces, and dont knock them out of the grooves when you go back with the gaskets.cause they are on the valve cover side and will be upside down when you put the valve covers back on.