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Spark plugs brand: NGK vs NGK Iridium vs Bosch
NGK BKR6EQUIP NGK IRIDIUM BKR6EIX BOSCH FGR7DQP Which should I use? I see many recommendation for NGK Iridium but someone mentioned the Iridium part cannot touch the connector whatever that means. I thought for spark plugs, you basically remove the old part and screw back the new ones to a proper torque. Also, are NGK spark plugs made in china? Last edited by babyduke; 04-21-2016 at 12:12 AM. |
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#2
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I just put those iridium ones in my '06 3.0i @ 143k miles. I've heard you shouldn't gap the iridium but I think they come within spec when ordered so not sure it's needed. There's a DIY thread here I used and plenty of other threads on the subject if you do a search:
http://www.xoutpost.com/bmw-sav-foru...m-bkr6eix.html Not sure the iridium made a difference in performance/mileage but the plugs I pulled out didn't look too bad. My understanding is iridium are recommended as they can provide both longevity and performance whereas platinum plugs don't perform as well and copper plugs don't last as long. But I'm sure there's a lot of guys that know more about this than me. |
#3
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I just replaced mine with the NGK platinum ones (NGK BKR6EQUIP) as per specifications for the N-62 motor. The OEM bosch plugs I pulled out @ 140,000 kms were a bit sad, but not totally stuffed. Have not noticed any difference in performance or economy (only done 100 kms ago). Changing plugs was not a difficult task at all. I laid out the coils in the order I removed them, so they all went back on the same cylinder. Oh - and by the way, NGK are made in Japan and probably one of the best spark plugs you can get (all my petrol/gas/lpg vehicles, stationary motors and machines have them).
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08/06 build 4.4i Stirling Grey over black |
#4
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Use these, you will be happier in the long run.
From NGK website The Spark Plug Serious Enthusiasts Rely On Designed specifically for the performance enthusiast. Iridium IX® offers extreme ignitability, improved throttle response and superior anti fouling Fine Iridium tip ensures high durability and a consistently stable spark Iridium alloy has extremely high melting point, perfect for today’s high-tech, high-performance engines Trivalent Metal Plating - superior anti-corrosion and anti-seizing properties Outstanding acceleration, high fuel efficiency and durability Ultimate design, technology and performance. NGK WEBSITE: https://www.ngksparkplugs.com/produc...ugs/iridium-ix BUY AND USE A GAPING TOOL GAP setting is .032" Buy the BKR6EIX as it is designed for .032 gap setting The other part number is BKR6EIX-11 is designed for .044 gap setting
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2005 X5 4.8IS The Blue ones are always FASTER.... Current Garage: 2005 X5 4.8is 2002 M5 TiSilver 2003 525iT 1998 528i Former Garage Stable Highlights 2004 325XiT Sport 1973 De Tomaso Pantera, L Model 1970 Dodge Challenger T/A 4 sp Alpine White 1970 Dodge Challenger T/A 4 sp GoManGo Green 1971 Dart Sport, “Dart Light” package 1969 Road Runner 383 1968 Ply Barracuda 340S FB Sea-foam Green |
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^Single tip NGK iridiums for all of my bimmers as well. Never had a problem.
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2005 X5 4.4i Build 04/05 Maintenance/Build Log Nav, Pano, Sport (Purchased 06/14 w/ 109,000 miles) (Sold 8/15 w/121,000 miles) 2006 X5 4.8is Build 11/05 Maintenance/Build Log Nav, DSP, Pano, Running Boards, OEM Tow Hitch, Cold Weather Pckg (Purchased 08/15 w/ 90,500 miles) 2010 X5 35d Build 02/10 Nav, HiFi, 6 DVD, Sports Pckg, Cold Weather Pckg, HUD, CAS, Running Boards, Leather Dash, PDC, Pano (Purchased 03/17 w/ 136,120 miles) |
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^I agree with Stephen to check the gap as well out of the box
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2018 Ram 2500 6.7L Cummins 68RFE 19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed 2013 X5 35D (CEO's) - Born on 5/17/2013 - 82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards |
#7
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Thanks for all your input. Youtube videos on replacing E53 spark plugs seem to be for 4.4 engine which requires 8 pcs. Since mine's a 3.0i, I just need 6, correct? Are they located 3 on each side of the engine block when you take the cover off? Just wanted to clarify before ordering.
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#8
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Yep. It's a straight six with all plugs on the US passenger side after you remove the engine caps, 2 10mm nuts, oil cap, engine cover, connectors and coils (see DIY link I sent earlier). The plugs near the firewall can be a bit tricky - you need a socket extension long enough to get to the plug but not so long that the ratchet hits the overhanging body. I also highly suggest a torque wrench with the new ones to ensure you don't under/over tighten (spec is in DIY; I think 18-20 ft-lbs).
Last edited by mtthmpsn; 04-14-2016 at 10:34 AM. |
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Quote:
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#10
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Yep besides cylinder 6 which is tricky with the length of extension but extremely doable, just take off the engine cover and pop each coil out individually and R&R - spark plugs on these cars are very easy - I'm doing the Iridiums this weekend with new Delphi coils just as preventative spring maintenance at my mileage of 86k and 13 years of age
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2018 Ram 2500 6.7L Cummins 68RFE 19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed 2013 X5 35D (CEO's) - Born on 5/17/2013 - 82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards |
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