Thread: NGK Iriway 7 and Iriway 8, IriMax 7, Denso IK20,22,24 Iridium Performance Spark Plugs
View Single Post
  #7  
Old 12-10-2011, 02:41 PM
mao's Avatar
mao mao is offline
Flat Four Father
Member
  
Join Date: Apr 2011
Location: Salter Point Western Australia
Posts: 2,033
Thanks: 3
Thanked 7 Times in 7 Posts
mao at standard level
Default
Heat rating on the Plug --- higher the number, colder the plug.

Quote:
Originally Posted by red dragon2002 View Post
thanks, just diffrence between the ngk 7 & 8?