Depicted are the original Champions, spark plugs that gave about seventy thousand miles use before being removed and replaced by new “Platinum” electrode ones.
As you can see two of the plugs have a long smooth black colored rubber hose compared to the other ones that have a short rubber sleeve this is because of some ingenious Detroit engineering designed to mesh well with their overall planned obsolescence scheme.
It ensures that car owners don’t do their own maintenance instead must visit only authorized dealership garages to do it.
If you were to try replacing the spark plugs by yourself you would find that it was very difficult or inconvenient to do so because access to the plugs requires disassembling engine manifolds and related gaskets something which was not the case with our old “gas guzzler” cars.
Replacing spark plugs on the old cars was easy and required only new plugs, a spark plug socket, a socket wrench and a small container of engine oil to lightly lube the spark plug threads before installing them.
This is my contribution for WP single word prompt:”ORIGINAL”.