Thread: Resistor spark plug converted into a non-resistor spark plug (with pictures)
View Single Post
  #13  
Old 01-27-2014, 08:13 PM
pmckechnie pmckechnie is offline
Registered User
  
Join Date: Jan 2003
Location: Matthews, NC
Posts: 1,356
Ok, the -11 means it is designed for a wider gap. I just sent the question to NGK to find out about the nickel core vs the copper core. I'll let you know what I find out.

Paul
__________________
84 500 SEL (307,xxx miles)
Reply With Quote