So far, gas trucks and Scotland have engaged in a torrid affair.
Many operators had bought into LNG, bunkering their own supply and bringing in the right trucks, before the fuel supplier suddenly did one.
However, the opening of a CNG site in Eurocentral, suggests gas in a different format might just be back.
Lochmaben Transport’s Stevie Walker spent the day behind the wheel of Scania’s CNG tractor unit.
