He should have the updated plugs now....right 30K on them

 

maybe it was about 3 years ago I bought them

 

They should be good for another 30k. Anyone who has replaced theirs anywhere near 100k will tell you that there is no way they'll go 100k without affecting drivability.

 

100k plugs can go to 100k miles....just saying.

 

100k plug change on the Tritons is a gimmick. I changed my plugs at 75k and the electrodes were nearly gone and the plugs cannot be gapped. Sure your engine will run at 100k with original plugs but it will also misfire under load, just saying.

 

oook Ill let set number 2 go a little longer

 

I had mine done at 70k just 2 weeks ago, and they were a nightmare. 5 broke, even after sitting all night soaking. Even if the plugs last 100k, there is so much carbon on them I would think it must affect something. I worked for Toyota for 8 years, many of their trucks/SUV's recommended plugs to be replaced at 30k. We would pull them out and they would be perfect like they were new. Unfortunately this design, as we all know, is flawed. My dealer wanted $640 to replace them and an extra $60 for every one that breaks. That's about the highest I have seen on this forum. Hopefully the next time breaking won't be an issue