I run the Denso.
Vehicle:
Audi
Owner reviews for spark plug
Manufacturers
Comparisons
Audi A3 spark plugs work like a charm. Stage 2+ & fully upgraded supporting hardware.
Pros: work like a charm
Vehicle:
Audi A3
Denso 5749 non projected
Vehicle:
Volkswagen Golf
Part number: 5749
I got some good tips from the community and went with Denso IKH24. Also bought a gap tool to properly gap them. Im planning on swapping them out every 8k.
Pros: good tips from community
Mileage: 8000 km
Part number: IKH24
Almost everyone either runs the HKS plugs or Denso plugs. I personally have had no issues running the Denso plugs.
Pros: no issues running
I went ahead and replaced all 4 coil packs and plugs as well as the PCV valve. Since I have to order parts, it seemed faster than checking the plugs and swapping coil packs, as well as good insurance, since the coil packs and PCV valve were (over)due for replacement anyway. It took about an hour without rushing. Took about a 30-minute test drive, highway and town, and the engine's running smoothly. Ran a scan when I got home, and no new fault codes, so I cleared them all out and the check engine light went out.
Pros: engine running smoothly
Vehicle:
Volkswagen Passat
When I had dino burner cars, I did all of my own work, and always used Bosch Platinum plugs for my specific engine and heat. Iridium last the longest life, but are more sensitive to getting hot and causing pinging.
Pros: longest life
Cons: sensitive to heat
Vehicle:
Volkswagen
Mileage: 10000 km
I just installed a set of Iridium XP 6203 in my Optima 2015 and they're working fine. Gap was incorrect on 2 of them, but was easy to fix.
Pros: working fine
Cons: gap was incorrect
Vehicle:
Kia Optima
Part number: XP 6203
I tried Denso once. I took Denso’s out and replaced them with Denso’s. They ran for 500 miles and quit.
Cons: quit after 500 miles
Mileage: 500 km
I wouldn’t put autolite plugs even in my lawnmower. NGK or Denso only.
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