[samsamdar]

Anyone here running the OEM BMW NGK F8S spark plugs? PN 12120042724. I'm curious bc a bunch of S55 guys are running them in their flexfuel cars. Apparently these are the OEM plugs out of factory flexfuel N20 cars. Supposedly we could get smoother idle out of these and run a higher gap as opposed to the NGK 97506 that everyone with a tune seems to run. I will probably give these a try but wanted to see if anyone else had any experience with these on a flexfuel N55?

[AmuroRay]

Originally Posted by samsamdar

Anyone here running the OEM BMW NGK F8S spark plugs? PN 12120042724. I'm curious bc a bunch of S55 guys are running them in their flexfuel cars. Apparently these are the OEM plugs out of factory flexfuel N20 cars. Supposedly we could get smoother idle out of these and run a higher gap as opposed to the NGK 97506 that everyone with a tune seems to run. I will probably give these a try but wanted to see if anyone else had any experience with these on a flexfuel N55?

Not interested in flex fuel, but I am interested in results. I just swapped out my NGKs for a fresh set (FCP) and the timing doesn't seem as clean as before.

Please let us know.

[VGSON]

Im running them on mine..get a few extras when you order them. They aren’t kept in stock anywhere. We dropped one during install and the ceramic cracked... Car seems to like em. I have the b58 coils and run straight ethanol.

[samsamdar]

Originally Posted by VGSON

Im running them on mine..get a few extras when you order them. They aren’t kept in stock anywhere. We dropped one during install and the ceramic cracked... Car seems to like em. I have the b58 coils and run straight ethanol.

What gap do you run?

[VGSON]

currently 22thou but could probably go bigger.