I looking into doing a Spark Plug and Coil Pack change on 06 GTI MKV I ended up getting the OEM NGK plugs. Well what my question is that some people are saying that you don't have to use anti seize compound on the treads on these plugs is that true since? and also should use any dielectric grease on my plugs since will that damage the coils at all? and also do i just put it on ceramic part or the plug or the the top tip of it? thank you.