As of 1 July 2006,  operators of diesel trucks or buses over 4.5 tonnes gross vehicle mass (GVM) which are used for on-road business activity are eligible for certain fuel tax credits as long as they satisfy at least one of four environmental criteria.…

Hi Gavin, Well,  I've had enough time now to properly evaluate the chip that you installed in my '06 X5. Just to set my credentials, I've spent a lifetime with engines, race cars, and bikes with all sorts of carbies, including the diabolical Weber…