It's an idea I have always supported, even though I do in excess of 20k per year in my car on (mostly) private business.
However, as a small business owner with 2 vans (soon to be expanding to 3/4) that each do 35-40k it would be crippling and that cost would have to be passed on to the customer

Who, incidentally, will have already paid the extra 15-20p per litre on a tank of fuel that is no use to them and will be drained and recycled as well as having to pay it again on the tank of the correct fuel they will have to fill with

Plus, the only way it could be implemented properly would be for the "RFL" element of fuel tax to be collected separately at source. If it was rolled into fuel duty then it would never end up where it should

After all, the money they currently collect in Fuel Duty doesn't always end up where it should and is just treated as a "Flexible Income" (or "Overtime" in layman's terms) for the Treasury
