![]() ![]() Furthermore, from my research, Nickel based anti-seize is the best to use on automotive spark plugs. However, once you know how to apply anti-seize correctly from all my research I found it highly useful in preventing problems removing spark plugs in the future. A small dab of anti-seize is all that is needed.You should only apply it to the middle portion of the threads.You only need a dab of anti-seize, and you must only apply it to the middle of the threads very carefully. It is easier to over-tighten a spark plug with anti-seize on it, especially if you are a beginner technician and not used to feeling when a spark plug is tight.Ģ.Lube=oil/anti-seize/any lubricant aka “wet” notice how the torque values are around 20% less than the dry values. YOU must understand and know how to DECREASE torque values when installing LUBRICATED (WET) fasteners. If you consistently tighten wet threads to dry torque values you will at some point break a spark plug off in the head, or do damage in some other way. Unless wherever you’re getting torque values from specifically states “wet” torque, then it is dry torque (they are assuming the threads are NOT lubricated). What this means is you need to decrease your dry torque values by %20 roughly.Anti-seize reduces the friction coefficient: You must, however, understand two very important concepts about anti-seize in order to use it properly. Through my research, I have found that using anti-seize properly is safe on spark plugs, and useful. We can start with some quick conclusions first to the question is putting anti-seize on spark plug threads good to do or dangerous? ![]() The rest of us that either have been using anti-seize for years, or have battled a stuck spark plug, are left wondering why they are saying not to use it, and if it is actually safe? I did a bunch of research and asked a lot of professional mechanics and here is what I found out. I use it personally, and this guide will help you to use it safely on your car if you so choose. However, from my research and asking mechanics in both the aviation and automotive industry, there is a safe way to use anti-seize on spark plugs even if they’re coated already. Therefore, if you want to just follow the manufacturer’s recommendations, as long as the plugs are “coated” to begin with they argue you should not use anti-seize. For example, NGK, Autolite, Champion, Bosch, Denso, AC Delco, will all tell you not to use anti-seize with their modern coated spark plugs. Many spark plug manufacturers have issued statements saying that using anti-seize on spark plugs in 2018/19 is not advised.
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