vs
Spark plug Denso or OEM Mazda
if you want some good plugs, get some denso IKH24, they are 1 step cooler than stock plugs.. I change mine out every 20k miles..
Pros: good plugs
Cons: 1 step cooler
Mileage: 20000 km
Part number: IKH24
IKH 24 plugs with stock coils work just fine. No cutout, rough idle or misfire.
Pros: no cutout, no misfire
Cons: stock coils
Vehicle:
Volkswagen
Replaced stock with denso ihk24.
Part number: IHK24
Rx-8 in 3years just did maintence and ned sparkplugs 0 problems.
Pros: no problems
Vehicle:
Mazda
Mileage: 100000 km
denso ik22 works also, also an iridium tipped plug
Pros: works also
Part number: IK22
I bought a box of denso.
Everyone has been praising (fleet vehicles).
Pros: praised by many
I'm pretty sure that modern Mazda's do do this, only not in the situation you're describing. They use it for their stop start system to save having to fit a beefier starter motor and what not, simply inject an extra dose of fuel and fire the spark plug to get the engine going again.
Pros: saves beefier starter motor
Vehicle:
Mazda 6
Im with the Densos already and the spool and throttle response is so much better. Even with gap 0.075mm they are much better.
Pros: much better spool, much better throttle response
Part number: IK22
Just an update for you and a PSA: CHECK YOUR SPARK PLUG GAP ON NEW PLUGS. I too trusted that the iridium plugs that I just bought should've been pre-gapped, but I noticed immediately after a tune-up my gas mileage went to piss. Popped the plugs back out and sure enough each one was well over 1mm .
Cons: gas mileage went down
I installed brand new denso ik24 plugs gapped at .026 and I am still getting misfires.
Cons: still getting misfires
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