1 Lucky Texan Posted October 13, 2019 Share Posted October 13, 2019 (edited) figured it's time, 75K miles on originals - 13 years old. so, I got 4 6481 NGK ILFR6B plugs I want to put in, just wondering if there's anything to watch out for and how many of you would use oil or never-seize on the threads. I think NGK recommends dry install. should be similar to our 03 H6es COPs right? I also have an atmospheric temp sensor but dunno where it's mounted, my original has been reading 7 degrees low for years. Edited October 13, 2019 by 1 Lucky Texan Quote Link to comment Share on other sites More sharing options...
Rooster2 Posted October 14, 2019 Share Posted October 14, 2019 I always use anti-seize when installing new plugs, and even on road wheel studs, when installing rims. Just don't allow anti-seize to get on the tip of the spark plug, but I am sure you already know that. Can't understand why NGK would recommend a dry install. Quote Link to comment Share on other sites More sharing options...
FerGloyale Posted October 14, 2019 Share Posted October 14, 2019 I dry install but I'm in western Oregon were we don't have corrosion concerns. Quote Link to comment Share on other sites More sharing options...
Rampage Posted October 14, 2019 Share Posted October 14, 2019 I use anti-seize, but it is military grade with copper in it. It's a leftover from the cast iron head days. Quote Link to comment Share on other sites More sharing options...
nvu Posted October 14, 2019 Share Posted October 14, 2019 NGK plugs already have nickel alloy coating on them. On aluminum you can install them dry. I do. There's very little room to access the rear plugs, I usually use a plug socket -> short extension -> tiny wobbler coupling -> wobbler extension -> wrench. Outside temp sensor would be on bumper, lower opening near license plate. 1 Quote Link to comment Share on other sites More sharing options...
heartless Posted October 14, 2019 Share Posted October 14, 2019 have NEVER used anti-seize on spark plugs - there is no need to. you are not supposed to torque them in that damn tight. 1 Quote Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted October 14, 2019 Author Share Posted October 14, 2019 so, that seems to be 2 plugs with and 2 without - lol! Quote Link to comment Share on other sites More sharing options...
1 Lucky Texan Posted October 15, 2019 Author Share Posted October 15, 2019 anyone change from underneath? worked well on our Outback. Quote Link to comment Share on other sites More sharing options...
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