Ii Tyre Markings

What do the marks on the side of a tyre such as 315/80 R22.5 754/150 M indicate? The 315 indicates the tyre width in millimetres and the 80 stands for the cross-sectional ratio......

Iii Fifth Wheel

Why is the fifth wheel so called? The term comes from the old four-wheel horse-drawn carriages and wagons. The fifth wheel allowed the front axle assembly to pivot in the......

Adblue

What is AdBlue and what difference does it make? AdBlue, a fluid which is added into the exhaust gas to react with the NOx in the catalyst, is in fact a registered trademark for......

Question Of The Week

What's the difference between SCR and EGR? SCR stands for Selective Catalytic Reduction and EGR for Exhaust Gas Recirculation. EGR, as the name suggests, works by recirculating......

Bridge Heights

If a bridge has no markings on it, how can you determine how high it is? With satellite navigation becoming increasingly popular among truck drivers, more cases are being heard......

Iiii Continental Offences

Do offences which occurred on the Continent go on my permanent record here? Information about offences can be shared between countries, although doing so is currently optional.......