Its back seat out,., lift carpet up, remove inspection flap over the fuel sender unit. remove sender unit,,, Rally around friends/family for fuel cans, old water containers?
Then with some sort of hand/electric pump, remove the fuel,,
Put at least 6 litres of diesel in, should have a hand primer under the bonnet,,.
If not it will be electric.
Can of easy start, Get your car running.
Your old fuel take to the waste site... Or if one of the local garages has an
burner, give to them
Do not carry more than 20litres at a time of your petrol/diesel mix in your car...
If the police pull you with more.. YOU WILL BE prosecuted..
Thats why D.D. suggested getting the company out. because of getting rid of the fuel, and having the containers to put the fuel in
But now you know how.. it is your choice, on which way to go....