Spark plug Motorcraft or OEM Volkswagen

I’ve found that Motorcraft platinum spark plugs work best in my 1998 Ford Ranger. I tried Bosch plugs and it ran terribly. Nothing but Motorcraft from now on (for Fords).

I however replaced mine with motorcraft and do not have pinging anymore but still run 91 octane as 93 isn’t common in socal.

I changed all sparkplugs now my vw is running great. make it's the correct sparkplugs.

On any of the gas trucks with the "modular" engine family (4.2 V-6 and 4.6/5.4 V-8) it seems like if you use anything other than Motorcraft spark plugs and coil packs, the engine won't run right at all, no matter the brand.

And also removed and cleaned my spark plugs. All these collectively seemed to have a great impact on the engine\u2019s performance! The engine runs much smoother and feels a lot more sporty!

New plugs and coils went in and the misfire is gone. Sounds healthy too.

I always stick with Motorcraft double platinum, or Autolites if they aren't available. No reason to get fancy with sparkplugs.

I did replace the spark plugs at 70k miles

Today I replaced the spark plugs with new ones PFR7S8EG VW genuine. With new plugs car runs better, but idle still wasn't good enough.

I have the same problem with my recently acquired 2011 Sharan. Tried a suggestion of new spark plugs with no success.