Spark plug NGK or OEM FORD

NGK BKR6EQUP. Those are the original and they tend to work well for the entire 100k change interval while many other brands/models can be problematic after a while.

I pulled my original plugs, and they were exactly the same as the replacement NGK. They're nice so far.

I installed the NGK PFR7S8EG laser double platinum. They came gapped at .032. Initially I installed them at .032 gap and just yesterday I closed the gap to .028. Car runs strong and idles smooth at both gaps.

I don't cheap out on the car so everything i put most by a name brand. New Parts; 37. NGK Spark Plugs

Replaced old plugs, DENSO W20EXR-U, with new NGK BPR6ES. Idles a lot more smoothly now.

I prefer NGK for both plugs and wires.

Just wanted to let you know i done the change and it was the easiest one i have ever done in my life! I went with the NGK Laser Platinum PZFR5Q-11 , but wanted to let you know just in case it could keep some out there from not checking the gap on these plugs prior to install. I thought they were supposed to come pre-gaped, but every one of them were set @ .040, instead of the manufacture recommended .044. Anyway, glad I checked, and thanks for the reply!

I use cheap-o copper NGK V-Power all copper plugs on my M Roadster that produce max power (according to a cohort of enthusiast whack-jobs who repeatedly dyno their cars to look for .0005% differences in power output), but need to be changed every year. No problems thus far.

Just swapped out some pretty old looking OEM bosch plugs that were gapped at .045 for some reason. Put in PFR6Q at .032\". Didnt notice much of a change.

econolines are ok except for one huge cluster****. On the late 90s through 02 i think they built them with too few threads on the heads for the spark plugs. Consequently spark plugs routinely blow out.