Tire pressures
Check and, if necessary, adjust the pressure of each tire (including the spare) at least once a month and before any long journey.
Check the tire pressure when the tires are cold. Use a pressure gauge to adjust the tire pressures to the values shown on the tire placard. For detailed information, refer to “Tires and wheels”.

Driving at high speeds with excessively low tire pressures can cause the tires to deform severely and to rapidly become hot. A sharp increase in temperature could cause tread separation, and destruction of the tires. The resulting loss of vehicle control could lead to an accident.
See also:
Recommended shifting speeds
The best compromise between fuel economy and vehicle performance during normal
driving is ensured by shifting up at the speeds listed in the following table.
...
One Gear Shy
To solve the problem for good, and improve the car markedly, Subaru needs to
replace the five-speed manual with a six-speed. So that you know where I'm
coming from, I'm not someone who demands six ...
Two separate circuits
Your vehicle has a dual circuit brake system. Each circuit works diagonally across
the vehicle. If one circuit of the brake system should fail, the other half of the
system still works. If one cir ...
