Tyre Pressure

Recommended values are on the door pillar or fuel flap. Check cold, at least monthly. Higher loads may need higher pressure. Pressure falls by roughly 0.1 bar for every 10 °C drop in temperature, so check after cold spells. A tyre can lose half its pressure before it looks flat. After driving, tyres are warm and read higher; do not let air out to reach the cold value. Nitrogen filling changes little for normal driving.

Correct pressure gives the right contact patch shape.

Low pressure increases fuel use, wear and heat. Too high pressure reduces grip and comfort.