How popular are your spark plugs?

[The_Jeff]

Honeywell/Autolite lists their spark plugs by how popular they are.

My 3926 rates a "C". (Last digits in URL are part #).

http://autolite.com will get you there eventually.

 

[tom slick]

both of mine are listed "A"

 

[Vilan]

XP63 only rates B. Guess I need to buy a few million to move it up.

Neat, my Metro uses the same spark plugs as (certain) Lamborghinis, Lotuses, and Maseratis!

 

[PandaBear]

AAA in popularity: NGK V Power plain copper plugs.