Items marked by the "fluid degradation counter" tag:

Nowadays, many modern cars (passenger cars as well as SUVs) more and more often are equipped with a CVT transmission instead of a conventional automatic transmission. Transmission fluid in CVT transmissions plays no less important role than in conventional automatic transmissions. Thus, well-timed changing of transmission fluid in the CVT unit is considered to be a key maintenance procedure.

CVTs have one “mysterious” component named a fluid degradation counter (or just fluid counter), which raises many questions among auto enthusiasts. Owners of cars equipped with CVTs constantly argue whether it is necessary to reset the oil counter after the oil change.