08-07-2020, 04:43 AM
Modern engines- both on plug material and tuning- can run plugs a LOOOOOONG time.
My only concern would be seizing.
My brother in law asked my several years ago to assist in what apparently was the first tune-up of my sisters Toyota...at about 130k.
We went to loosen the first plug...no bueno. I asked him how does it run? He said fine. I said better not to strip the threads out of the cyl head on a car worth maybe 3-4k at that time.
She went on to drive the car for many tens of thousands of miles with zero issue.
My only concern would be seizing.
My brother in law asked my several years ago to assist in what apparently was the first tune-up of my sisters Toyota...at about 130k.
We went to loosen the first plug...no bueno. I asked him how does it run? He said fine. I said better not to strip the threads out of the cyl head on a car worth maybe 3-4k at that time.
She went on to drive the car for many tens of thousands of miles with zero issue.
