Northstar Engines and System Technical Discussion Discussion, Spark Plug replacement in Cadillac Engine Discussion; I have a 96 seville sts. I was just wondering what y'all thought about putting anitseize on spark plug threads ...
I have a 96 seville sts. I was just wondering what y'all thought about putting anitseize on spark plug threads during replacement. First of all is it really a big deal? I know it is an aluminum engine and it would be a big problem if one seized up and it broke. I replaced the plugs a month ago or so and didn't really want to take them all out again and put anitseize on the treads, but preventing a broken plug is certainly in everyone's best intrest.
Automobile(s): White Diamond '03 DHS (with DTS floor shift)
Re: Spark Plug replacement
Anti-sieze on plugs is not recommended. I believe it is conductive and too much can cause carbon tracking (aching down the side of the plug). It also lubes the threads which will lead to over torqueing and stripped threads.