yes
YesAdditional answerNot in principle. They all work the same way but there will be differences for various reasons. But then, not all car plugs are the same either.
It is possible but for all the plugs to go bad at the same time is unlikely.
No there are a number of different types of spark plug.
no
No!
yes
No, I think that 93 and 94 are the same but then 95 has different plugs.
No. All 16 spark plugs on a 5.7L Hemi are the same.
No. The ECSC was not for all European countries, only Western European states were invited to join. It was also not so they could all have the same amount, but rather so they could benefit from a mutual resource sharing agreement.
None, It is commonly believed that 22ft/lb is the torque for all spark plugs but this is incorrect
Other than Finland and Russia, other European railways use the standard gauge.