vs
Spark plug Autolite or Denso
I've been running Denso (5346) IKH24 Iridium gapped .024 on APR stg1 for 48k miles and most recently on stg 2 with no issues.
Pros: no issues
Mileage: 48000 km
Part number: 5346
Autolite a103 gapped to .055" will give you about a 5hp increase and last around 30,000 miles
Pros: 5hp increase, long lasting
Mileage: 30000 km
Part number: A103
Denso TT iridium are so far the best ones I’ve tried in terms of performance
Pros: best in performance
Vehicle:
Ford Mustang
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
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
Porcelain tip fell off one Denso spark plug in cylinder 1. Doing less the 200km distance. Motor is f@$ked.
Cons: motor is f@$ked
Mileage: 200 km
I’d never put autolites in a Jeep, send em back and get champions or NGK depending on year and model.
Vehicle:
Jeep Wrangler
I quit using autolite plugs somewhere between 1995 and 2000, got tired of all the comebacks.
Cons: tired of comebacks
Write your review
Help others - share your experience with this part.
Comparisons
Show all
Voted AGAINST engine oil RAVENOL on the rating page
The brake pads NIPPARTS got the first review!
The brake discs Hella got the first review!
The brake discs OEM Suzuki got the first review!
For tires OEM Toyota already 25 reviews.
For tires IRONMAN already 25 reviews.
For starter motor OEM Volkswagen already 25 reviews.
In the rating best ignition coil already 13 brands participate!
In the rating best fuel pump already 5 brands participate!
In the rating best turbocharger already 4 brands participate!
In the auto rating headlights for Volkswagen Golf already 5 brands participate!
In the auto rating brake pads for Mazda 5 already 10 brands participate!
In the auto rating brake pads for BMW M2 already 5 brands participate!
Voted AGAINST engine oil RED LINE on the rating page
Voted AGAINST engine oil PENNZOIL on the rating page
