I have been using motorcraft platinums and was wondering if bosch platinums would be just as good???

 

say no to bosch about only thing fords like are motorcrafts and NGK... NGK are bit more pricey but they are damn good sparkers

 

I actually prefer the Bosch platinums to the Motorcraft plugs. I've had more than a few Motorcraft plugs fail. Never had a problem with Bosch.

 

Motorcraft, Autolite, and NGK are all pretty good.
Sure, you could get a bad plug from anyone, but these three all seem OK.

Sounds like Champion, and Bosch aren't liked around here...

 

I've got the "dreaded" Bosch +4's and have not had a single problem with them... So far I have had them in the truck for over 4 years and 85,000 miles.....

When I pulled the original OEM plugs with 62,000 miles on them, they were so far out of gap spec (over) and the center electrode was all rounded from wear that I could not see how they would have gone to the 'suggeseted' 100,000 mile mark...

Anyway, I know I'm in the minority with the luck I've had with the Bosch's and know that many, many more have had problems with them.... If I had read all the negative reports about them before I bought mine, I would not have bought them at all.... Heck, if I had read this site before even buying my F150, it would have been the last truck I would have even considered buying!! ha, ha.....

Even after I found the site and had my truck, I thought the thing was just going to crumble right under my feet!

Glad that was not the case and glad that this site is here!

Mitch

 

Spark plugs are like the debate over what oil to use.
I have yet to hear what is bad about any given plug, what the failures are and what proof there is aside from the ocasional failure that sometimes is encounterd with any product.
Hell, my DPFE failed at 53000 mile, and it's a factory part. Should I change brands for that?
As far as Bosch muiti electrode ground plugs, you have to take into account that the design is a departure from the original Ford design spec.
There can be some issues with this plug, in certain applications, that not everybody gets into.
You will never see circle track race cars of any real seriousness using them for certain technical reasons, but they work ok otherwise.

 

I just put in autolites today. My old plugs had 184 000 km on them. The plug gap was way to big. It runs alot better now. Alot quicker throttle response and no hesitation..

I never removed anything under hood, just used extensions and u joint to get the plugs out. # 4 was a bit hard , i left it for a couple days and finally got it done today.

But i did think getting the plug wires off was harder than changing the plugs on most of the holes.

 

I'm wondering if I should replace the plugs on my truck - a 1999 F-150 with 5.4 and about 80,000 miles. I read posts about those that go 150,000 miles before they even consider plug replacement. But, then - how can you not worry about those aluminum heads with only three or four threads holding the plugs? A little rust on the plug and rubbing that thread a little wrong to get the old plug out with so few threads?

Anyway, I'm curious - I know they say 100,000 miles. But, I love this truck - 1999 F-150 - and it still runs like a champ and has been virutally trouble-free. Want to keep it running that way. The truck has had 100% dealer service since new and they don't seem to e worried at 80,000 miles on the plugs.

Any input?

 

I changed mine at 60,000 and again at 110,000 (it was right before taking the truck in for painting, half the body was apart, figured it'd be a good time for it). AT 60,000 some of htem already had siginificant amounts of rust on them. That would be my primary worry, that and I like to keep an eye on em occasionally to make sure they arne't loosening up and getting ready to spit out.