Hyundai Sonata spark plug evidence

When I started driving, oi; changes were at 1200 miles, spark plugs got pulled and cleaned at 5000 and replaced at 10 and when I got my first job at a gas station I will always remember the “37” Pontiac because it had 37 grease fittings. Also if you got 15000 miles on a set of tires you were doing good. Also, you added a can of top oil every second gas tank fill.