NGK Iridium gapped at 0.026 only. They’re great
Pros: great performance
Owner reviews for spark plug
Manufacturers
Comparisons
Have used NGK on my Toyota Prius v, works just fine, never had problems.
Changed them recently, still had factory Denso spark plugs, and they worked alright too, even after 121k miles of use.
Pros: works just fine, no problems
Cons: worked alright
Vehicle:
Toyota Prius v
Mileage: 121000 km
That is what I am running in this 1996 Corolla and my gas Mileage is better than ever! Made a huge difference in power .
Pros: better gas mileage
Vehicle:
Toyota Corolla
I drive a 01 4runner and I run NGK plugs and wires. Almost 300k on the dash.
Pros: runs NGK plugs and wires
Vehicle:
Toyota 4runner
Mileage: 300000 km
We changed that spark plug and the customer was happy with the magneto drop. That spark plug worked fine on a Champion spark plug bomb test.
Pros: customer was happy
But yea the electrodes say everything. The quality difference is massive. And some cars a very picky about spark plugs. I had a Volvo that I had to put actual Volvo plugs in for it to run correct. No joke it solved a 30 second crank poor gas mileage and severe stumble and misfire when coming into boost.
Pros: solved poor gas mileage
Cons: 30 second crank, severe stumble
Vehicle:
Volvo
Champions quiet redesign of their plugs to match Tempest made up my mind. It matters, and Champion is just trying to save face.
Pros: redesign to match Tempest
Cons: trying to save face
We just got the 60k service done (spark plugs) and it still does it.
Cons: shaking still present
Vehicle:
Subaru Outback
Mileage: 96560 km
I've had nothing but bad luck with Autolite brand.
Cons: bad luck
I have a poor running Audi in the shop now. While it needs more than plugs, it has autolites.
Cons: poor running
Vehicle:
Audi
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