It is essential to regularly check your tyre pressure to maintain fuel efficiency and improve safety whilst driving. Under inflated tyres can affect the handling and grip potentially causing irregular or unpredictable vehicle behaviour. Having correctly inflated tyres can also extend tyre longevity and reduce CO2 emissions with better fuel consumption. This nifty digital tyre pressure gauge provides tyre pressure reading in PSI and BAR with blue black-lit CD display. The AA has looked after Britain