vs
Spark plug OEM FORD or Denso
I use [Denso IKH24's](https://www.fcpeuro.com/products/audi-vw-spark-plug-denso-ikh24). It's the projected tip version of the Denso plug EQT has recommended on their FAQ (IKH01-24).
Pros: readily available, FCP warranty
Vehicle:
Volkswagen
Mileage: 10000 km
Part number: IKH24
Until I replaced the plugs, coils, alternator, starter, battery and cleaned connections all I could, this problem persisted and my vehicle killed a coil / 2 every season.
Pros: cleaned connections
Cons: vehicle killed coil
Vehicle:
Ford Focus
Use only Honda specified plugs (usually Denso Iridium) and they last 100,000 miles just fine.
Pros: long lasting
Vehicle:
Honda
Mileage: 160934 km
I like ac delco. But I recently used denso tt fine wire plugs I two different ls engines. What a difference in power. And gas mileage.
Pros: difference in power, gas mileage
I just replaced mine, at 80k, with Denso PLatinums. The same brand as the stock plugs.
Pros: same as stock
Mileage: 80000 km
Denso Iridium 1 step colder plugs. Running great on my 2017 Jetta 1.4T
Pros: running great
Vehicle:
Volkswagen Jetta
Part number: 5308 IXU22
When I had my Ford Raptor tuned I went with these as recommended by the tuner and they have been superb
Pros: superb performance
Vehicle:
Ford
Back in March two days after finishing the Water Pump replacement it started misfiring. I started with replacing the spark plugs with OEM Denso's, but that didn't fix it but was VERY NECESSARY.
Pros: necessary replacement
Cons: didn't fix misfiring
Just install my today, is it just me being paranoid or else? the engine noise sounds louder and it's very noticeable. Has anyone felt the same way? by changing out for these spark plugs, does it make any advantage performance wise? btw i am pretty sure the installation was good and not misfire or anything likes that. just more engine noise and not a good noise.
Cons: louder engine noise, not good noise
The original dealership where I bought the van installed Denso spark plugs part # SXU22HCR11S which were supposed to have a gap of 0.044 but they all had either 0.039 or 0.040. Apparently no one checked the gap before putting them in.
Cons: incorrect gap, poor quality control
Part number: SXU22HCR11S
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