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Spark plugs for 28i

Specific discussion about the E89 2009 Z4 (sDrive35is, sDrive35i, sDrive30i, sDrive23i)
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greg1953
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Spark plugs for 28i

Post by greg1953 » Fri Jan 17, 2020 1:16 pm

Could I have some recommendations for spark plugs for 28i please ?
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Pbondar

Spark plugs for 28i

Post by Pbondar » Fri Jan 17, 2020 1:41 pm

NGK BR8D8S is the OEM part!! Why mess?

https://www.ngkpartfinder.co.uk/car_com ... p?id=12901

https://www.realoem.com/bmw/enUS/part?i ... 2120039664
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Beeacon
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Location: Manchester, UK

Spark plugs for 28i

Post by Beeacon » Fri Jan 17, 2020 2:13 pm

Only time you would mess about with the spark plugs is if you are seeing pre-ignition (usually because the engine is heavily tuned) in which case you would go one stage cooler. But I imagine this is very rare to see in the N20 engine.

Bit of reading for the N54 engine (35i/35iS) that may shine some light: https://www.bimmerworld.com/About-Us/BM ... ark-Plugs/
Current: Still thinking...
Past: 2009 BMW Z4 35i sDrive DCT
Past: 1997 BMW Z3 2.8 wide boy
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greg1953
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Spark plugs for 28i

Post by greg1953 » Fri Jan 17, 2020 2:58 pm

Pbondar wrote: ↑Fri Jan 17, 2020 1:41 pm NGK BR8D8S is the OEM part!! Why mess?
Cheers.

https://www.ngkpartfinder.co.uk/car_com ... p?id=12901

https://www.realoem.com/bmw/enUS/part?i ... 2120039664
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