what spark plugs do you all use? - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 05-27-2004, 12:46 AM
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just wanted to know what plugs everyone has been having good experiences with, i know all cars are different, some cars prefer different plugs, and in my experience bosch platinums dont work in too many of them, but since they were OE in Bimmers i am willing to try them, i would like to know if any of you have ever put the NGK iridiums in your cars, my bimmer has 300K miles on it and i just got it, i am trying to do everything i can to keep her running, starting from the simplest things and working my way up. I checked with NGKs website and they ARE offered for this car (mine is an 85 325e) has anyone used the bosch plat +4s? are they pre-gapped? I just dont want to spend 35 bucks on a set of plugs and then have the car run worse than it does now. I am sure many of you can relate.
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#2 (permalink) Old 05-27-2004, 01:27 AM
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As far as I know, platinums are not recommended for E30s.

You may want to do a search on www.bimmerforums.com and see what others had to say. I remember reading something on there 6+ months ago regarding platinums.

<a href='http://www.e30tech.com/forum/viewtopic.php?t=8854' target='_blank'><img src='http://www.e30tech.com/pictures/e30/sig25.jpg' border='0' alt='user posted image' /></a>
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#3 (permalink) Old 05-27-2004, 02:12 AM
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i have had 2 bimmers since i have been in germany and both of them had +4's in them when i went to change them, so i guess they are good .
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#4 (permalink) Old 05-27-2004, 02:17 AM
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I dont know how the e30 and e36 ignition components differ, but regarding an e36 here is what I have experienced...
{HERE}

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#5 (permalink) Old 05-27-2004, 03:31 AM
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It is very important to only run Bosch Silbur WR9LS in these cars. A factory mechanic told me other plugs can actualy damage pistons.----Steve
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#6 (permalink) Old 05-27-2004, 07:35 AM
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platinum plugs are good for very long extended life, but if you think about it from another perspective, I'm pretty sure you can get copper ones, and thats one of the best conducting metals... ehh? ehhh?
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#7 (permalink) Old 05-27-2004, 09:41 AM
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Under closer inspection, it seems that people are split down the middle on this subject:

http://forums.bimmerforums.com/forum...d.php?t=167353

http://forums.bimmerforums.com/forum...d.php?t=195027

http://forums.bimmerforums.com/forum...d.php?t=198388

Personally, I would just stick with a Copper Plug.

<a href='http://www.e30tech.com/forum/viewtopic.php?t=8854' target='_blank'><img src='http://www.e30tech.com/pictures/e30/sig25.jpg' border='0' alt='user posted image' /></a>
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#8 (permalink) Old 05-27-2004, 12:32 PM
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Replacement stockers - Bosch W8LCRs, I think they are.


Four Five Six - It's on.
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