Ngk have been pretty reliable motor craft is pretty good too but I've seen good life spans for both.
Pros: good life spans
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Very broadly, only use NGK, Denso, Bosch, or Champion.
Pros: reliable brands
according to my halfords e- receipt i last used cr8 iridium plugs, no complaints here.
Pros: no complaints
NGK all day, compared to all others they’re just made better, I bought Bosch platinum for a VW and the OE came out were NGK, after 50k they were still visually a better manufactured plug. Example- the plating on the Bosch threads was rougher.
Pros: better manufactured plug
Cons: rougher plating
Vehicle:
Volkswagen
Mileage: 50000 km
Over the last 16 years with my 8 gas engine VWs and Audis, the OEM or OEM equivalent (Bosch or NGK) at stock gap (unless chipped) have performed better and more consistent than any other I've tried.
Pros: better, more consistent
The NGK's have been a solid go to for me and my little Pocket Ferrari for every day driving.
Pros: solid, good for driving
NGK and Bosch are the same ones as the Genuine BMW ones. The latter are just rebranded and marked up.
Vehicle:
BMW
NGK run good for me
Pros: runs good
I’m 90% sure my EGTs came with Bosch plugs, switch to NGK that are 2 steps colder for my tune haven’t had any issues with them for about 25k miles
Pros: no issues for 25k miles
Mileage: 25000 km
OE plugs for this engine is NGK Laser Iridium. Hyundai/Kia usually use either Denso or NGK plugs.
Vehicle:
Hyundai Sonata
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