Spark Plug Heat Range Advice

[NINJA]

Someone posted this link on an FB group page and I thought it was quite useful. So I thought I would share it with you bros n' hoes and those who hide in the closet!!! :smiling_face_with_open_mouth_cold_sweat: :face_with_tears_of_joy:

https://www.onallcylinders.com/2012/11/16/spark-plug-heat-range/

I found a couple more which are also an interesting read;

https://matchlessclueless.com/mechanical/ignition/spark-plugs/

http://www.ngksparkplugs.co.za/technical/technical-spark-plugs/

[NINJA]

here's another simple spark plug guide;

https://www.briskusa.com/spark_plug_cross_reference_heat_range_chart