Minor versus major, and when each is due
A minor service is oil, filters and fluids — roughly every 10,000 km here. A major adds the items on longer intervals: spark plugs, fuel filter, brake fluid, coolant, transmission fluid. Most cars want a major every third service or every 40,000 km, whichever comes first, and skipping the major is how a car ends up with six-year-old brake fluid.

