And have no concern using NGK plugs. I use Laser Platinums in my M5 with no problems. Bosch Platinum +4s are okay. Denso makes a good plug, also.

__________________
8/2011 X5 xDrive35d Sport, Black Sapphire Metallic, Black Nevada Leather, Fine Burr Walnut Trim
2/2001 M5, Jet Black, Exclusive Complete Black Walk Nappa Point Heritage Leather, Black Cubic Trim