Quote:
Originally Posted by gjm120
Minor point as most people will double check before purchasing or installing, but, the plugs for the 128i are shown as NGK LZFR6AP11GS on RealOEM and NGK's catalog. (These are 95712.) Only reason I caught this is because I recently bought a set a very good price even though don't need them now.
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You're right, but from what I've noticed is there's a decent debate on what NGK spark plug to actually use.
Quoted from an Amazon review (I know, not exactly the most credible source but it gets the point across):
"The NGK website lists [NGK 6619 LFR6AIX-11]
as a recommended plug for the N52 engine. This is not the plug recommended by BWM, however; the Bentley manual says to use NGK ILZFR6D11. I believe that NGK has updated their plugs since BMW made its original recommendations. If you go through realoem.com, they show different spark plugs for different years in the life of the N52 engine. For an '09, it would probably be the NGK PLZFR6A11S, though neither BMW nor Bentley recommend that one either."
-C.A.M (2 years ago on
https://www.amazon.com/product-revie...munity-reviews)
Multiple NGK plugs on Amazon have a bunch of positive reviews, all mentioning BMWs with N52s, all saying they run just fine. I honestly don't think it'll make that big of a difference. There's a bunch of threads accross 1Addicts, E90Post, etc. discussing various plugs.
All I know is I bought the NGK LFR6AIX-11 and I haven't had a single hiccup. Performance and gas mileage are great.
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Some maintenance intervals I found a while ago
Antifreeze: 60K
Brake fluid: 24K or every 2 years
Rear Differential fluid: 50K
Spark plugs: 80K
Manual gearbox fluid: 50K
Oil change: 5K
Power steering fluid: 24K or every 2 years