<E36 M50> More on Spark Plugs

["Perry Shang" <scsi_one@xxxxxxxxxxx>]

	Thanx for all the people who helped me out for changing the spark plug.  
I changed the plugs last night and I found out this strange things about 
the spark plugs that I have.  
	They are menufactured by NGK.  The interesting thing is that every 2 
cylinders have different marking of spark plug.  Cylinder 1,3,5 will 
have BMW/NGK marking on it.  While Cylinder 2,4,6 have just NGK marking 
and B(something) on the spark plugs.  Any Clue why is that?  (the spark 
plugs have two eletrodes comming out on the firing side.)

Perry.

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