Owner reviews for spark plug

NGK Iridium gapped at 0.026 only. They’re great

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.

That is what I am running in this 1996 Corolla and my gas Mileage is better than ever! Made a huge difference in power .

I drive a 01 4runner and I run NGK plugs and wires. Almost 300k on the dash.

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.

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.

Champions quiet redesign of their plugs to match Tempest made up my mind. It matters, and Champion is just trying to save face.

We just got the 60k service done (spark plugs) and it still does it.

I've had nothing but bad luck with Autolite brand.

I have a poor running Audi in the shop now. While it needs more than plugs, it has autolites.