How often do you change your TR55 plugs?
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I am making it around to changing my Tr55s for the first time since I installed them. I have ran almost 27,000 miles on these plugs and some of them look rough. I am curious as to what mileage other are getting with them before replacement.
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I had my first set in for 16k. Rebuilt motor and have about 9k on the new ones. Will run them through the winter and change them in the spring. Sounds like what others are doing. My id DD also.
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Looks like I will start marking them down for 15k changes. I figure it is better to be safe then sorry. Plus the plugs looked nasty with 27k on them.