How long copper plug go for ?
How long copper plug go for ? Last year I change out plug on my camaro, with TR55 NGK copper plug. Im wonder how long til I need to change it out. I think it been 7k miles and 1 year
And about my ls1 trans am, factory recomment platium, can I use NGK tr55 copper plug too ? since ls1 seem kinda easy to change plug then lt1.
And about my ls1 trans am, factory recomment platium, can I use NGK tr55 copper plug too ? since ls1 seem kinda easy to change plug then lt1.
Last edited by killagt; Jun 25, 2011 at 09:25 PM.
i think it was recomended to have them switched at 30k miles. But if the engine has no problems and the tune is ok, they should be able to last over 50k miles. Ive heard of some ls1 vettes change them at 30k miles, and they still look good.
