How often do you clean/adjust spark plugs?

[Fantastic]

I was cleaning my spark plugs today and decided to check the gap and adjust as necessary. How often do yall do that with your Abarths? I found 2 plugs well beyond spec at .034", the other 2 were a little loose for my liking at .26", and I had previously set them at .022". That tells me to check way more often than every 10,000 miles. I put them all back at .020" this time and the car runs significantly better.

[Trunkout]

Honestly I’m afraid to check again....

[Fantastic]

Honestly I’m afraid to check again....

Which pretty much means you need to I think.

[Fiat500USA]

The change interval is 30,000 miles, so I bet most people don't check and adjust the plugs. If you are heavily modified, I guess checking them occasionally wouldn't be a bad idea, based on your findings. Like anything else, the harder you push a car, the more maintenance it needs. I imagine that high energy coils may contribute to gap erosion, too. What plugs did you use?

[Trunkout]

Which pretty much means you need to I think.

Last time I checked I found oil soaked on piston 1’s plug.... and Fiat said it was normal....
not sure I wanna go down that road again....

[Thomas]

I replaced mine after less than 25k KMS, and found a substantial improvement in general performance/responsiveness. I was quite surprised with the results. This leads me to believe that the interval given for replacement needs to be taken with a grain of salt.

The change interval is 30,000 miles, so I bet most people don't check and adjust the plugs. If you are heavily modified, I guess checking them occasionally wouldn't be a bad idea, based on your findings. Like anything else, the harder you push a car, the more maintenance it needs. I imagine that high energy coils may contribute to gap erosion, too. What plugs did you use?

[Fantastic]

What plugs did you use?

SIKR9A7. They run better than any others I have tried.

[Robert Nixon]

I replaced mine with stock plugs at around 33,000, no problems since, haven't checked, so at 60K I'm due for another change.

[500]

On this; I think cold starts and driving style need to be taken into account, as well as how much oil the car tends to consume. My car is thirsty with the oil and I suspect it has a lot to do with alpine living and cold morning starts. I changed my plugs around 32k mi and they were destroyed. The electrodes were covered in deposits and the gap was out of spec. The new plugs made a massive difference in performance and fuel economy. like an easy 5mpg/ average difference per tank.

It's $60 and 45 minutes to do, so I'm going to do them every 20k mi or maybe less if I see fuel economy fall off.

- Julie