It's more complicated than just "filling it up" — car tires have an optimal internal air pressure, and all sorts of things can get in the way of maintaining it.

Eating out with friends was a constant source of anxiety for Dulcie, a 23-year-old research student from the UK. Her throat would gurgle loudly, and her chest would tighten as gas painfully expanded ...

Checking all of your car's key fluids takes less than ten minutes with the engine cold or recently cooled. The six fluid ...