Yep, a lot of people don't realize that Bosch and NGK had (have?) a licensing agreement.
Originally Posted By: HerrStig
Originally Posted By: dparm
LOL, I can't believe the myth that "German plugs can't be used in a Japanese engine" (and similar [censored]) is still flying around. If you are having problems with a Bosch plug in a Japanese car, you are using the wrong plug: heat range, gap, etc.
There are literally millions of German cars running around with Japanese plugs, and vice-versa.
But hey, your car, your money. If you feel better knowing that you have NGK plugs in a Toyota, more power to you.
I owned several SAABs, they all came with NGK from the factory. Apparently the Swedish guys didn't have the same knee jerk loyalty to Bosch that the Germans do. I've also seen more than my share of lousy Bosch switches, relays, and sensors, all sold at grand prices. I might add. Bosch has sold repackaged NGK O2 sensors for some time. I've been running NGK in my BMW bike for some time, in the suggested by NGK heat range, I'm very pleased.