Quote:
Originally Posted by recycledsixtie
If you the customer want your plugs changed every 30K miles, then u should get it. The reason your Boxster has gone so many miles is because either 1) you are lucky 2) you are meticulous about your servicing or a combo of the two. I suspect the latter. Go to a shop that gives u what u want!  |
I'll throw out a 3rd hypothesis that has been born from my experience with aircraft engines (many similarities with Porsche power plants)...the OPs car was run 25K or more per year.
Machines that are run often tend to give outstanding service life while those that are used less often are more prone to malfunction, corrosion, accessory failure, leaks etc...
I doubt the mechanic refused to change the plugs...what's more likely is he looked at them and decided they were serviceable and informed the customer.
If the customer is more concerned about what a piece of paper says over what an experienced tech says, then the tech should just do it, logic be damned!