The Sunday Times excellent Car Clinic panel were quizzed this week about the pressures vehicle manufacturers recommend for tyres – this is what they had to say.
Mr PH, from Boston, Lincolnshire, posed the question: “The owner’s manual for my Vauxhall indicates three possible tyre pressure settings – one for normal load, one for full load and one for economy (which is the highest). My wife’s car handbook contains a similar recommendation. Is this common practice now?”
Car Clinic Panel expert Dave Pollard replied: “Under-inflated tyres wear out more quickly and create problems when cornering and braking. Manufacturers have long suggested two pressures: one for light loads and one for heavily laden. But some are now adding a third, higher, pressure for economy. More air in the tyre gives a harder ride but at the same time produces less drag on the road, so is more economical in terms of fuel consumption. In truth, the difference is likely to be small. Stick with the normal load pressures.”
Denna Bowman, Head Office