Hello Good People,

How many miles are on your Spark Plug Wires before changing?
My last set was STI HLS102 in 2018. They have probably less than 8000 miles.

Thanks

 

At that rate, it will probably be 30 years before you need to change them (approx 40,000 mile service).

On the other hand, I have a set where one plug end does not quite snap on like it did when new. So, depends if you like to swap plugs a lot, and the ends wear out or get rusty/corroded, not the wires.

 

Looks like I will be holding into these a bit longer.
Thanks for the response.

 

LR service recommends copper plugs and leads be changed every 30,000 miles