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  #1  
Old 02-10-2018, 01:53 PM
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Spark Plugs
I believe we are supposed to change out E70 spark plugs around 60k miles.

I know people think OEM which are Bosch platinum are better.
$8.56
More Information for BOSCH ZR5TPP33S

I have been told Iridium last longer. They have these two on rock auto.
$6.01
More Information for DENSO 5356
$9.19
More Information for DENSO 3501

It says the $9.19 Denso iridium lasts 100k miles. I think the Bosch platinum last around 60k miles. Anyone know how long the regular $6.01 Denso iridiums last?
Any thoughts on what is preferred?
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  #2  
Old 02-10-2018, 05:33 PM
ard ard is offline
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Same answer as on Bimmerfest

OE or OEM is preferred
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  #3  
Old 02-10-2018, 06:07 PM
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I've been using NGK plugs for 15 years in my BMW's. Wouldn't recommend Bosch personally.
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  #4  
Old 02-11-2018, 12:30 AM
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Quote:
Originally Posted by richardb View Post
I've been using NGK plugs for 15 years in my BMW's. Wouldn't recommend Bosch personally.
Why?
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Old 02-11-2018, 12:43 AM
ard ard is offline
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Oddly, NGK is the OEM for my 996TT.
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Old 02-11-2018, 08:21 AM
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I have part numbers for the 4.8 in my video. NGK
https://youtu.be/eI7SdnwiYuY
Youtube: DIY_NATION_TH
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  #7  
Old 02-11-2018, 01:34 PM
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Quote:
Originally Posted by ard View Post
Same answer as on Bimmerfest

OE or OEM is preferred


The Bosch is OE

What’s the difference between OE and OEM?
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Old 02-11-2018, 05:14 PM
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OE is Original Equipment (came from the factory and replacements purchased at the dealer) and OEM is Original Equipment Manufacturer. That means, they are a registered manufacturer with the factory but doesn't mean its an OE part.
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Old 02-11-2018, 10:07 PM
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What is the OE for E70 xdrive35i? The v8 is NGK but I'm being told the 6 cylinder is Bosch.
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Old 02-12-2018, 10:27 AM
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Quote:
Originally Posted by richardb View Post
I've been using NGK plugs for 15 years in my BMW's. Wouldn't recommend Bosch personally.
Another why?

I just purchased Bosch for our 4.8, haven't installed them yet. Also have Bosch in my E36.
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