ive searched with no good results..
for those of you that are spark plug changers..what did they look like at 30 k miles...are they worn or can they go 50 or 60 k....my last sonoma had 100 k plugs...tks in advance
Thought it had to do with different internal temps...but I'm probably wrong.
FYI on the 2 plug types. When my dad switched to working on toyotas in the early 90's, that was the first thing he noticed about the V6's...that toyota put in 3 of one type on one side and 3 of the other type on the opposite side. He was told by toyota in training that it was to maintain an equal support for its 2 plug suppliers. New to me though that they're now doing it in the 4 cylinders too. I'll have to pass that on to him since he's been retired for many years now.
As for how far the standard 30K plugs will go...well that depends on who you talk to. There's been other threads in here about that topic. I changed mine at 48K miles and they could have gone to 60K easily. I've seen others' pics on here though where they're worn down/burnt really bad at 30K miles. So it just depends on your truck and how you drive it (or possibly the gas or environment)?...rhetorical question.