Originally Posted by ARCOgraphite
Originally Posted by blupupher
Good job there.
Problem is today's vehicles just don't require as frequent changes.
It has been 5 years since I have changed plugs, and I did those when my daughter was at school.
my next planned plug change is not for at least 2 more years.
Good to teach them if they want to learn.
But wouldn't biochemistry be better?
I cant teach my wife anymore to be self sufficient. I wanted to do a training session on tire removal spare tire mounting with her Subaru/ But she wouldnt bother.
Then I'll get the call someday she's in the hinterlands with a flat and cant figure it out. And Of I go on some 100 mile resque /repair trek
On plugs. Given hours of operation. Never changed plugs on my Snow thrower in 27 years.
Pulled it once at 15 years - it looked sharp and good. Back in it went.
Not good to disturb the sleeping giants - which is secondary ignition.
Changed the plugs a couple years ago on my 29 y.o. B&S mover. it didnt like the new "easy start" part number ( IMO, the extended tip advanced ig timing too much) So the old one went back in.
Plugs last longer with low oil usage engines and unleaded fuel.
Now off-tuned engine and oil users will need more frequent changes due to earth metals plating out on the insulators and inner shell.
Now moronic Subaru requires a change on the plugs on my wife's 2017 car at 60K miles
BUT It has special fingenail -tip Ruthenium/Iriduim plug which are super long life.
BaH ! Humbug !
I'm leaving them in for another 30K. Car runs great, no misfire.
IMO its a money grab for SOA dealers that's all.
there is an excuse to void my free engine lifetime warranty!
Lol, my Mazda calls for plugs every 40K miles. It's all just part of a turbo vehicle pushing almost 20psi of boost my man.
Your time investment is priceless.
