Changing out copper tip plugs

[The Silver Goat]

At how many miles and or check the gap at how many miles and how long do they last. Been a long time since I've dealt copper tippedplugs.

[Sarge]

You know there are so many outside influences it is difficult (at best) to generalize on life expectancy of a plug.

I just pull a couple and check from time to time and see what is going on.

[mark21742]

I generally check my plugs everyother oil change. I run autolite 103s and they usually last a couple years