Why It's Bad to Drive on Underinflated Tyres

Underinflation flexes sidewalls excessively, builds heat, wears shoulders, hurts economy, and in extremis causes blowouts — especially at highway speed on hot days.

Fuel and emissions

Rolling resistance climbs; you burn more fuel per hundred kilometres.

Handling

Steering feels vague and emergency swerves load shoulders unpredictably.

Fix habits

Monthly gauge check beats trusting eyeballs — modern low-profile tyres look fine until they are not.