Spark plug Champion or OEM Subaru

I always run champion platinum in the coil rail 4.0s. Sometimes engines are particular.

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.

You can get the champion version of the RS7 plugs for less than $20 a plug and they’re working great on my car!

These were actually alright spark plugs. The ceramic is a lot tougher than normal ceramic, and the electrode is larger. They were marketed as 'truck plugs', but they're really good in old tractors and farm equipment. They last forever.

For spark, I wasn't sure I had the right plugs so I went with the OEM Champion plugs that were recommended in the Bentley. I checked for spark, no issues there.

I once had to use 99 cent Champion plugs in my car for a few months when I was flat broke. They worked fine but didn't last long.

Avoid Champions. Use NGK or Denso. Don't go cheap on plugs because the job is labour intensive.

Side note, Champion spark plugs suck. Use them in lawn mowers.

Champion is shit for cars. Leave it for mowers and weed eaters.

I would return them and get Motorcraft anyway. Champion is garbage.