Tyre Pressures
Always check your tyre pressure.
Twenty per cent of a car’s fuel consumption, or one tank in every five, is used to overcome the rolling resistance of tyres, but this increases if tyres are under-inflated. For commercial vehicles the figure is even higher with a fully loaded HGV using one third of its fuel in overcoming tyre rolling resistance.
Low tyre pressure and the resulting increase in rolling resistance leads directly to higher fuel consumption. In a car, tyres under inflated by 15 psi (1 bar) lead to 6% greater fuel consumption. That’s an increase of £150 every year on a fuel spend of £2,500 per year.
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