You register directly with C&E. There's information on their website about doing this.pitman wrote:I know a guy, who has even a second tank and a heater and the like in his car.
He never told anything about registering.
You have to return information to them monthly. It's intended to be a service used by companies, but there's nothing stopping an individual doing it.
The "guy" you refer to is running a very large risk, as if it's just a couple of litres of SVO in your tank, you *might* be able to argue it away, saying you used it as injector/fuel system cleaner to pass the MOT, and that you haven't put any more in since then.
If he has a complete twin-tank system with pre-heater and changeover, then it's obvious that he's running on the stuff as a fuel rather than an additive. Not registered? That'll be his car crushed then.