vs
Spark plug Denso or OEM Subaru
Reviews
Use only Honda specified plugs (usually Denso Iridium) and they last 100,000 miles just fine.
Pros: long lasting
Vehicle:
Honda
Mileage: 160934 km
Since then I have take good care of it, replaced the brakes on schedule in August 2020 and then in August 2021 new spark plugs.
Pros: replaced brakes, new spark plugs
Vehicle:
Subaru Forester
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
Get the oem denso ones. There is nothing better than oem for that kind of thing.
Pros: nothing better than OEM
This is what a 202k mile spark plug looks like on an 2013 Lexus gs350 daily driver. Pretty impressed with it overall. All 6 plugs look exactly like this.
Pros: impressed with it overall
Vehicle:
Lexus
No discernible difference to me, positive or negative. But since I am running APR stage 1, I followed APR's recommendation.
Vehicle:
Volkswagen
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
I installed brand new denso ik24 plugs gapped at .026 and I am still getting misfires.
Cons: still getting misfires
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