Spark plug NGK or OEM FORD

I just replaced the spark plugs on my 2014 Cadillac ELR(essentially a gen 1 volt). My ELR has 81000 miles on it. It still had the factory plugs. One of the plugs was leaking compression as seen in the photo. If you have a first gen volt or an ELR, if the plugs have never been changed, it won't hurt to take a look at them. I replaced them with NGK 94279 spark plugs.

I just fixed a shift issue in my 2011 by changing the spark plugs. The plugs were so worn they were draining the electrical system. Lights brighter and Stereo is louder in left channel now too.

My wife has a 700ckx Heritage 2022 model. She has been riding for over 20 years. Bought this bike because of seat height and price point. Used almost every day for commuting. She just hit 40k's with no issues. We did change the plugs for NGK and swapped out the pipe. Also added a Scott's oiler for the chain. She loves it.

NGK Iridiums are what I run and never had a problem

If you’re asking about brands, I always go NGK. They’re definitely my preference. They have a coating on the threads and don’t require grease when you install. And they come pre gapped.

NGK !!!

Next day guy at the auto parts store tells me to try ngk iridium’s and it works automatically. If you’re planning to replace your spark plugs save your self the time and money and buy ngks over anything.

I replaced the plugs again (from Brisk to NGK R7437-9) and rotated the coil packs to try and resolve the misfire issue. I also re-flashed both the ECU and TCU tunes, and the cold start misfire issue appears to be fixed.

So, I changed spark plugs in an old Ford Focus 2001. And currently there's no way I can get the original Motocraft spark plugs, so I bought and installed the NGK ones which are supposedly compatible with my vehicle. I used them a week, but since the start I noticed great differences in size in the threads and in the shape of the head. Is this a problem?

Don't think the platinums give much of a performance advantage and they foul faster if you've got any oil burning going on...