uluz2a6 Senior Member May 25, 2007 #1 Is there a colder plug than NGK bkr6E 11? I don't think NGK makes a 12 (higher = colder). Can anyone cross reference the 11 to another brand then go 1 colder?
Is there a colder plug than NGK bkr6E 11? I don't think NGK makes a 12 (higher = colder). Can anyone cross reference the 11 to another brand then go 1 colder?
