baz
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- Joined
- May 26, 2010
- Messages
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Well I can only speak from personal experienceIf you're British then it's a sparking plug.
" In both US and British English, a spark plug is a device in an engine that delivers electrical current to ignite the air-fuel mixture, creating a spark that starts combustion. The term "sparking plug" is primarily used in British English as a variant of "spark plug", according to Collins Dictionary."
In over 5 decades I've never heard anyone say "sparking plugs"
I've only ever heard "sparkplugs"