Moto GP Racer
Join Date: May 2012
Location: Land O' Cheese
Thanked 1,120 Times in 951 Posts
Feedback Score: 5 reviews
its not required. Most people only put them on because it makes it easier to remove them the next time around. For instance: I just changed the plugs and wires on my 07 Grand Prix a few weeks ago. They are iridium plugs and GM says they are good for 100k miles. I did my 100k service so I changed plugs, wires, oil, filter, transmission filter, and drained/replaced trans fluid.
Now since these were original plugs and wires, if there was dielectric grease or anti-seize applied at the factory, there was none left(I doubt there was any originally applied). I kept telling myself there was no way that I was going to be able to do this without busting my knuckles open..... Well I did, about 5 times. Thats how stuck they were. Fast forward to today, If I were to go out to my car and pull plugs, it would be easy as pie because I applied the dielectric grease and anti-sieze.
Overall, Not required, but if you ever plan on messing with your plugs in the future, apply it. They are only a few bucks for a little 1 time use packet at an auto parts store. Spending 2 bucks to make it easier down the road is well worth saving your knuckles
2006 Honda CBR600RR Black Tribal Edition
2W1R - IceTitan