Reading Spark Plugs

[grego37]

I got this Info recently on reading spark plugs, thought I'd pass it on.
Great info, enjoy.

http://cochise.uia.net/pkelley2/sparkplugreading.html

 

[brianj5600]

Good article! Some other things I heard is it only works on new or nearly new clean plugs. Also some fuels like, turbo blue, leave a very light grey color when jetting is right.