Bosch Platinum +4 Spark Plugs Good or Bad?
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RE: Bosch Platinum +4 Spark Plugs Good or Bad? - 4/3/2007 1:33:36 AM
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llesra
Posts: 331
Joined: 9/6/2006
From: Colorado
Status: offline
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bad! there has been a lot more people that had problems with those plugs than to those that had none. just replace with what it came from the factory and avoid the problems. btw, sweet shot! 
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RE: Bosch Platinum +4 Spark Plugs Good or Bad? - 4/4/2007 1:26:51 PM
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Disco Mike
Posts: 10490
Joined: 4/27/2006
Status: offline
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I have 4 years and 65,000 miles on my Disco running Bosch Platium Plus 4's and Magnacor wires.
People who usually bad mouth them are pass on second or 3rd. hand info and have no first hand experience using them.
As part of doing my head gaskets I am going to up grade to their new Fusion plugs which is even a step up over the Plus 4's.
Because of my referals, I have about 70 plu people using them and not one has had a bad experience, most really liked the increase in low end torque.
By the way, up untill last year I also had a 420 SEL with nearly 200,000 miles on it, close to the last 100,000 miles were run on Plus 4's.
Go for it and if you don't like them, Bosch will give you a full refund, I don't know another plug manufacture that will do that.
Mike
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RE: Bosch Platinum +4 Spark Plugs Good or Bad? - 4/5/2007 10:08:48 AM
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Disco Mike
Posts: 10490
Joined: 4/27/2006
Status: offline
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So what have you decided to do for plugs?
Mike
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RE: Bosch Platinum +4 Spark Plugs Good or Bad? - 4/14/2007 12:11:02 AM
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Rondo
Posts: 75
Joined: 4/14/2007
From: San Diego, CA
Status: offline
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I have recently changed to Bosch +4s w/ Magnacor 8mm wires as well. So far only 20 miles on the set up but no problems!
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