View Single Post
Old 07-04-2008, 09:34 AM   #9
roady89
nimda
Club Car
 
Join Date: Jun 2007
Posts: 13,022
Default re: Am I using the right spark plug?

Not all manufacturers follow the same spec as far as hot and cold, up or down. I was thinking an 8 simply because thats what I have in mine. I also run pre-mix at around 50:1 full synthetic. If the plug is too cold, there will be deposits on the nose of the plug. If the plug is too hot, the porcelain will be porous looking, almost like sugar.

NGK plugs get HOTTER as the number gets lower. (See chart below.)

Bosch plugs get COLDER as the number gets lower.

NGK Spark Plug Chart



NGK Spark plug spec chart


Bosch Spark Plug Chart



Bosch Spark plug spec chart

Bosch Plug Spec Chart



Bosch plug spec chart
roady89 is offline   Reply With Quote