BOSH Platinum 4's

[mskaj]

Anyone use these plugs? They come with a lifetime replacement warranty and advertise improved performance and mileage. Anything better out there?

PS. I know Bosch is misspelled on the thread title. I don't know why that hapened.

[mskaj]

Is anybody using these plugs?

[CJ]

A while back there was quite a bit of discussion about these and other plugs (try doing a search). Some people loved 'em while others that tried them had problems and even more said 'snake oil' about them. Me? Never used the plat 4s, but I used their plats before and on two different vehicles, the insulator cracked on two different plugs. Thought back then that they weren't worth the possible gain if they fell apart in my engine. I still feel that way.

YMMV.

CJ

[nedjames]

I've had the Bosch Platinum+4 plugs for over a year now and have liked them. My original Densos were fouled at 700 miles and I was looking for a hotter plug. No problems so far.

[ricqik]

I have them too. I had no gains or losses while the plugs was installed. I'll probably try something else next time, maybe NGK that my brother keeps telling me to try.

[merman]

Bosch plugs work great in German cars. Toyota engines don't seem to like them at all. Stay with NGK's or ND's as recommended by Toyota. I have replaced more Bosch platinum plugs for running problems than any other brand.