Bosch or Motorcraft plugs?
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Originally Posted By: NHGUY
Bosch plugs are not nearly as good as they were years back.Years ago I tried the +4s and the car idled very roughly.I quickly took them out and trashed them.
Here's a bit of trivia....You would associate German cars with Bosch,but way back in 1955 James Dean,his mechanic and Competition Motors used Champion plugs in his new 550 Porsche Spyder...not Bosch...wonder why..??
Most BMW's in the last 20 years had a version of the +4 as their OEM plug. They held up just fine.
Bosch plugs are not nearly as good as they were years back.Years ago I tried the +4s and the car idled very roughly.I quickly took them out and trashed them.
Here's a bit of trivia....You would associate German cars with Bosch,but way back in 1955 James Dean,his mechanic and Competition Motors used Champion plugs in his new 550 Porsche Spyder...not Bosch...wonder why..??
Most BMW's in the last 20 years had a version of the +4 as their OEM plug. They held up just fine.
MC - no doubt.
Installed Bosh Platinum 2s on my Explorer at 55 thousand miles. At 97 thousand it has been idleing rough and MPGs have dropped. Now that the weather has broken some here where I live, gonna put Motorcraft Platinums in and hope to smoothe out the idle & return MPGs--wishful thinking!!
1. Motorcraft plugs if you can find them
2. Autolite plugs if you can't find Motorcraft plugs
3. NGK. They work well in most cars that specify something else.
2. Autolite plugs if you can't find Motorcraft plugs
3. NGK. They work well in most cars that specify something else.
Originally Posted By: artificialist
1. Motorcraft plugs if you can find them
2. Autolite plugs if you can't find Motorcraft plugs
3. NGK. They work well in most cars that specify something else.
Best advice in the whole thread. FULLY agree! I really have come to like Autolite plugs.
1. Motorcraft plugs if you can find them
2. Autolite plugs if you can't find Motorcraft plugs
3. NGK. They work well in most cars that specify something else.
Best advice in the whole thread. FULLY agree! I really have come to like Autolite plugs.
Use Motorcraft or Autolite (I use Autolite in my Escort).
Originally Posted By: punisher
Not even a close contest. Use the OEM Motorcraft.
+1,000 OEM all the way for every application
Not even a close contest. Use the OEM Motorcraft.
+1,000 OEM all the way for every application
Originally Posted By: dwcopple
Originally Posted By: G-MAN
The Motorcraft plugs were installed this morning. First thing I noticed was a much smoother idle. It will be interesting to see if there is any improvement in MPG.
did you do it or pay to have it done?
I'll do my own oil changes, but when it comes to something like this, I get my local shop to do it. $120 for about 1.5 hours of work (I supplied the plugs) plus intake gasket. Upper intake manifold has to be removed to access the back bank of plugs.
Originally Posted By: G-MAN
The Motorcraft plugs were installed this morning. First thing I noticed was a much smoother idle. It will be interesting to see if there is any improvement in MPG.
did you do it or pay to have it done?
I'll do my own oil changes, but when it comes to something like this, I get my local shop to do it. $120 for about 1.5 hours of work (I supplied the plugs) plus intake gasket. Upper intake manifold has to be removed to access the back bank of plugs.
Originally Posted By: thorromig
Installed Bosh Platinum 2s on my Explorer at 55 thousand miles. At 97 thousand it has been idleing rough and MPGs have dropped. Now that the weather has broken some here where I live, gonna put Motorcraft Platinums in and hope to smoothe out the idle & return MPGs--wishful thinking!!
Not wishful thinking at all. Our Mountaineer needed new plugs at 50k miles, and now were at 107k and they are needed again. It seems the 4.0 SOCH starts to have issues every 50k, like when it is first started in the morning it will go to high idle and then drop down to almost stalling for 3 seconds and then slowly climb back up to fast idle. This problem immediately goes away with new plugs. I won't be doing them though because we are selling it in a couple of months.
On second though, who am I kidding? I'll be replacing them because I just can't help myself! I went with Autolite double platinum last time, but maybe I'll go with the cheapest ones since we will be sending it on its way at some point.
Installed Bosh Platinum 2s on my Explorer at 55 thousand miles. At 97 thousand it has been idleing rough and MPGs have dropped. Now that the weather has broken some here where I live, gonna put Motorcraft Platinums in and hope to smoothe out the idle & return MPGs--wishful thinking!!
Not wishful thinking at all. Our Mountaineer needed new plugs at 50k miles, and now were at 107k and they are needed again. It seems the 4.0 SOCH starts to have issues every 50k, like when it is first started in the morning it will go to high idle and then drop down to almost stalling for 3 seconds and then slowly climb back up to fast idle. This problem immediately goes away with new plugs. I won't be doing them though because we are selling it in a couple of months.
On second though, who am I kidding? I'll be replacing them because I just can't help myself! I went with Autolite double platinum last time, but maybe I'll go with the cheapest ones since we will be sending it on its way at some point.
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Always try & use the OEM plug whenever possible.
the shops that service BMW, MB and VW use NGK or Denso's. Bosch's aren't what they used to be.. just still have the name recognition.
the shops that service BMW, MB and VW use NGK or Denso's. Bosch's aren't what they used to be.. just still have the name recognition.
stay with what came in the car..motorcraft!!!
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