Owner reviews for spark plug

Avoid the NGK’s Bosch or “Volvo” (also Bosch) plugs are way better than the NGK’s.

I also went with the IKBH20TTs. I noticed my mpg was better after doing so, and the truck seemed to idle and drive smoother.

I ended up going with the Denso IKBH20TT because I couldn’t find any FK20HBR8 at a reasonable price and availability.

The car started to misfire at boost so I swapped plugs to NGK PFR6H-10 and everything is good now.

Don't use Bosch sparksticks.

I use iridium’s NGK haven’t had any issues.

I used champion spark plugs.. no problems here

Use the AC Delco iridium original plugs. Many sites will only show the double platinum as a replacement but every time I've ever driven an engine with those in it, it pinged or idled rough and iridiums always fixed it.

I replaced the spark plug with an Auto Lite spark plug. Engine light went away but still runs rough and misfire on acceleration.

I purchased some Autolite XP Iridium spark plugs earlier this month and immediately installed them. Within a mile of driving, the car started shaking violently and the check engine light came on. I immediately turned around and reinstalled the old plugs and the problems went away.

I replaced mine with Bosch once, it drove like shit and I immediately replaced them with NGK.