Got my 2019 Civic 1.5T to 93k miles and sold it this fall. Great car. Probably had some oil dilution because dipstick level would creep up. No CVT problems (drain and fill were done at 45k & 90k). Replaced plugs at 90k as well and they looked good although there was a little oil in cylinder 3. Ran great, no codes, high quality oil changes every 5k.
On my Honda Fit that would be an excellent price because you have to take off a cowl to get to the plugs.
Ignition coil most likely. I have done many dozens of them. Takes about 2 minutes to replace.
I recently got Denso (OEM) from my local o’reillys cheaper than the dealer (~$80).
Bro ABSOLUTELY do the spark plugs yourself. I bought oem Denso spark plugs from Napa Auto for about $180. Then all you need is a spark plug socket w/ swivel head, 10mm socket, 12mm, a couple extensions, needle nose pliers, dielectric grease, and a pick to make life easier.
Denso iridium spark plugs
New Denso Platinum spark plugs. Car drives great, no codes, no sputtering or stalling or hesitation.
Swapped the NGKs (around 60k miles on them) for new OEM Denso plugs. That stopped the shaking for about two days, then it came back.
I’ve had several Denso plugs do this on a couple Camrys I service, and our own. All 2.4 cars. Caused tow ins for both husband and wife’s cars. I’ve fired denso as a spark plug provider, too many failures.
I wish my Toyota 4Runner spark plug service was that cheap in the Toyota dealer. I was quoted $800 parts + labor for OEM Denso.
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If choosing spark plug across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.
We compare spark plug across these categories:
In March 2026 on PartReview, spark plug Denso were overall better than OEM Honda.
In March 2026 on PartReview, spark plug Denso were overall more popular than OEM Honda.
By vote balance, spark plug Denso surpassed OEM Honda:
By number of reviews, spark plug Denso surpassed OEM Honda:
In March 2026, according to PartReview, spark plug OEM Honda led more car-specific ratings than Denso:
OEM Honda are chosen by owners of cars such as: Honda Accord, and others.
Spark plug Denso have not yet taken leading positions in car-specific ratings. You can help by adding a review and specifying your car.
If this comparison didn’t fully answer your question, there are many others on PartReview.
For example, comparisons of spark plug Denso with: NGK, Bosch, Autolite, Champion, AC DELCO, BRISK, OEM Volkswagen, OEM Toyota, Motorcraft, OEM FORD.
Also available: comparisons of spark plug OEM Honda with: NGK, Bosch, Autolite, Champion, AC DELCO, BRISK, OEM Volkswagen, OEM Toyota, Motorcraft, OEM FORD.
You can also see who is better among other spark plug manufacturers: Bosch or NGK, NGK or Denso, NGK or Autolite, NGK or Champion, NGK or AC DELCO.
