Originally Posted By: DBMaster
A Mazda tech bulletin from Hiroshima states that the Mazda Skyactiv-G engine must use the iridium/platinum hybrid plugs to avoid misfire or "driveability issues." I am guessing that it's probably due to the engine's 12:1 compression ratio.
I doubt it. THe iridium center electrode tip and platinum disc on the ground electrode are for longevity.
the VW 3.6L VR6 spark plugs are the NGK Laser Iridiums which are exactly that.
A Mazda tech bulletin from Hiroshima states that the Mazda Skyactiv-G engine must use the iridium/platinum hybrid plugs to avoid misfire or "driveability issues." I am guessing that it's probably due to the engine's 12:1 compression ratio.
I doubt it. THe iridium center electrode tip and platinum disc on the ground electrode are for longevity.
the VW 3.6L VR6 spark plugs are the NGK Laser Iridiums which are exactly that.