Adding a small amount of copper grease to spark plug threads primarily prevents the plug from rusting to the cylinder head and in Aluminium head cases, prevents 'cold welding'. The copper content also allows for greater earthing properties and contributes a very small amount to create an air tight seal.
Anti seize on the threads, and dielectric grease on the plug wire end. Check manufacturer reccomendations as some are against using anti-seize grease. Also anti-seize grease which contains copper could be not compatible(corrosion) with aluminium alloy engine head.
You do not have to but it will be very good if you place a die-electric grease on points where ignition wires contact spark plugs and distributor/coil pack.
chromium copper iridium platinum
Spark plugs use several materials, including steel, copper, platinum, porcelain, and a mineral called kyanite.
ac delco copper Use the factory recommended plugs. AC delco 41906.
use just a little anti-seize on threads
If using standard copper core spark plugs, every 30,000 miles. If using platinum plugs, up to every 100,000.
hoW much does grease monkey garage charge to change spark plugs
It is recommended to use Nickel Anti-Seize on all spark plugs. It helps you to remove the plug without chance of breakage. I also recommend using some Dielectric grease around the porcelain to prevent heat from making your plug boots from sticking.
when do you change spark plugs
change spark plugs, spark plug wires, distributer cap, change oil, belt, grease fittings, fuel filter. -all cheap and easy to do.
My guess is that it is a 3.1L motor correct?? If so, you remove the spark plug wires from the engine bank closest to the front ( left bank ) then remove the plugs...the rear ( right bank ) is not acessable unless you remove the "dog bones" from the left bank. there should be a small bolt hole under the dog bones to put the bolt that you had removed into it to pull the engine closer to the front. then remove the wires from the right bank and remove the plugs. make sure all the spark plugs are properly gapped using a spark plug gapper.. highly recommend that you use dielectric grease on the insides of the spark plug wire boots to prevent seizing and corrosion, then on the spark plugs use a small amount of anti-seize grease on the threads of the plugs also to prevent seizing and corrosion