Originally Posted by Junodtim
It all sounds good. But wait until you see the bill when the sparkplugs are frozen in the engine block and/or break off. I will never wait until 100K to change plugs again.
Junodtim beat me to it!
"Way" back in 1999 my new Monte Carlo had "100,000" mile plugs. I'm a work on my own car kinda guy so after a few years and at 70 or 80,000 miles I thought I'd change them early. 2 of the plugs needed a lot of work (and PB Blaster) to get them out.
After that I told myself to never leave plugs untouched more than 3 or 4 years.