Change to new size equals 25% better mileage for Prestons
Size does matter, and this is precisely the reason why Prestons of Potto doesn’t regret a switch from 295/80 R 22.5 drive axle tyres to 315/80 R 22.5 fitments on its new tractor units. The different size tyres – all Michelin XDN2 Grip – were specified on 20 new Scania R480 6×2 tractor units that entered service with the Northallerton-based company in February and March 2010. After more than two years on the road, Prestons reported that the highest-mileage tractor unit had clocked up 325,683 miles (524,137 kilometres) before its tyres needed replacing.