What is the best spark plug for cars?

[Keith48]

What is the best spark plug out there? I have had good results from the AC Delco Rapid Fire and the Splitfire. Just wondering what some of you car experts think. Thanks?

 

[Perry Hayes]

I have used autolite plugs for years,I sold myself on them in 1978.

 

[Hardy]

Newer cars today have very few spark plug problems due to the electronic ignition systems and fuel injection. You should be able to expect as much as 100,000 miles on a set of plugs if the car is running properly. But back to your question......I usually prefer the OEM plugs used by each manufacture. If you have problems with the plugs you may have other contributing problems.

 

[Keith48]

Thanks, Hardy. No problems. I guess I should be a little more specific - I am looking for a high performance spark plug. Thanks guys!

 

[jeclif]

there was a thing on plugs in hot rod a few years back and ngk came out ahead of the others in their test and they are made in the usa

 

[Kdog]

Best would be any platnum plug. If I buy them, I try to go with the OEM brand, or Bosch. They may have improved the problems with the split fire, but they were causing engine problems when they first came out.

Kdog