spark plug recommendation
11-03-2010, 08:15 PM
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I initially ordered the NGK LASER PLATINUM (PLZFR6A11S) but after reading several posts and articles decided to go with the NGK IRIDIUMS (ILZFR611D). Then when i went to check on REALOEM it shows IRIDIUMS as discontinued and Platinums as the current plugs. I don't get it I thought IRIDIUMS are superior to Platinums, why would BMW go in reverse first installing Iridiums as OEM and then replacing them with platinums. Any info would be appreciated
11-04-2010, 04:19 AM
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My Ride: 525
Model Year: 2004
Not sure why the Iridiums are no longer listed on RealOEM, but they are still widely available (PepBoys $6.99). I just bought a set and put them in my 525 with no issues. I also have NGK Iridiums in my MDX and Porsche. Seem to work great and I have heard generally positive recommendations on those forums as well.
11-04-2010, 04:34 AM
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My Ride: 525
Model Year: 2004
Just double checked at the NGK and a few other sites. The NGK par number listed on RealOEM was not a fit for out cars (at least not the 525). The correct NGK number for the NGK Iridium IX plug is part #BKR6EIX stock #6418.
11-04-2010, 07:39 PM
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CEenit u had me worried about the right plugs but then i realized u have an 2004 525i i have the 06 525i with the N52 engine, hence the part number u provided is not compatible with my vehicle. Mine takes ILZFR611D stock # 1208
11-05-2010, 07:25 AM
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My Ride: 07 550i Titanium Silver, Black Dakota Leather, Steptronic, Sport, Premium, Nav, Sat. Radio, Logic 7, Comfort Access, Rear Sunshade.
One of my BMWCCA chaptermates recommends Denso iridiums.
11-05-2010, 03:18 PM
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I never bothered looking into DENSO as i wanted to stick OEM supplier so it was between NGK AND BOSCH and did not find as strong of a recommendation for Bosch as for NGK, hence NGK IRIDIUMS IT IS !!
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