Bosch Spark Plugs

Just looking for some other input on Bosch Plugs, particularly the Platinums. I've tried them in several vehicles and the only one that seems to like them is a '98 Caravan. I replaced the stock Motorcraft's in an '01 Ranger 4.0L. The truck ran like crap, the check engine light came on, because the plugs caused a misfire. I put the stock ones back in and it ran fine...

Stick with the OE plug. It is a double platinum. Bosch plugs are well marketed in my opionion and aint that good. Stick to what came OE on that thing and it will run fine. Whatever you do not downgrade to a copper plug or a standard platinum otherwise I can guarantee you will have issues. Hope that helps.

honestly, the best plugs to use in Fords are either Motorcraft or Autolite. Anything else will make the truck run terrible. On a Caravan, Champion is the best that or Mopar plugs, nothing else.

Stick with the OE plug. It is a double platinum. Bosch plugs are well marketed in my opionion and aint that good. Stick to what came OE on that thing and it will run fine. Whatever you do not downgrade to a copper plug or a standard platinum otherwise I can guarantee you will have issues. Hope that helps.
I agree. Platinum plugs, and especially Bosch are really well marketed. But they don't perform that well.

honestly, the best plugs to use in Fords are either Motorcraft or Autolite. Anything else will make the truck run terrible. On a Caravan, Champion is the best that or Mopar plugs, nothing else.

I was wondering about these 4-pronged plugs awhile ago.

Plus, nice pic there freaknasty.

[QUOTE=ifidie2nite]I was wondering about these 4-pronged plugs awhile ago.

They're not worth the money. You still have a single spark, whether the plug has one prong or thirty, it just gives the spark more ground opportunities.

worth it

Just looking for some other input on Bosch Plugs, particularly the Platinums. I've tried them in several vehicles and the only one that seems to like them is a '98 Caravan. I replaced the stock Motorcraft's in an '01 Ranger 4.0L. The truck ran like crap, the check engine light came on, because the plugs caused a misfire. I put the stock ones back in and it ran fine...
Thankyou;you have helped me make a decision I should have found easy. I recently removed the Motorcraft platinums at 100.000 Kms. and they looked so good I just doped them and put them back in! Its been my experience with older Fords to have trouble when I strayed from the original and I was wondering if that fear was still valid!