What is causing you guys to have to change out the plugs? Just going for colder plugs?

 

just regular maintenance/tune-up

 

What year car do you have that requires this maintenance already?

 

2003...the book says 60K, but mike at gruppe-s recommended I do it already. anyways, the originals looked like they have another 10-15K left in them, so I suppose I could've left them. But the car feels smoother now (could be from mike's tune more than anything though).

 

Well, looks like I am good for another 45k miles then - Whew!