Tyre Pressure Gauge

Digital and dial gauges are more accurate than many forecourt gauges. Pressures are given in bar, kPa or psi. Check tyres cold for accurate values. Pressure rises as tyres warm up, so checking after a long drive gives higher readings than the specified cold value; do not let air out of hot tyres. Most manufacturers list pressures for normal and full load. Checking at least once a month and before long trips helps fuel economy, tyre life and safety.

The gauge presses the valve core and reads the pressure.

Cheap gauges can be inaccurate. Compare with the placard values.