Ok, I have what is probably a stupid question. I just ordered myself some new plugs and wires (both AC Delco). In the box with the wires is a small tube of, what I assume is grease. Is this dielectric grease? I've read where that's good to use to keep the boot from seizing to the plug. Do I only use it on the end that attaches to the plug, or do I use it on both ends? On a side note, I got my set of wires from RockAuto.com. I'm not trying to promo their site, but they were having a wholesaler closeout on the plug wire set for my truck and I got a full set of AC Delco plug wires for just under $30!! I'm not sure if they're doing it for other year models or not, but if you're in need of plug wires, might be worth a look!