Oh dear. :'(
That might be much more costly than just £30 of petrol and paying someone to pump it back out... the stuff is a lousy lubricant for those injector pumps.
How much diesel was in the tank to start with? My missus did the same with our diesel, thankfully it was almost empty of diesel, and put about £30 of petrol in it. She drove home about 1/2 mile and got it on the drive before it conked out.
I had to take off the fuel tank outlet pipes, and siphon it off into containers. Took me about 2 weeks to burn that fuel off in my old Fazer! :eek Smoked a little bit too!
If I'm teaching you to suck eggs here, just tell me to shut up!
Drain the tank, change the fuel filter and pump fresh fuel through with the priming bulb. If the car won't start after 30 seconds of cranking on the starter, you might have to crack off an injector and get someone to turn the engine over until air bubbles stop coming out of the injector pipe. Tighten it up, start the engine, and go fill up with DIESEL!!!! It'll run a bit rough for a mile or so, but hopefully there won't be any damamge to the fuel injection pump.
Good luck!
Stop polishing it and ride the bloody thing!!
A bloke I knew couldn't get his ford pickup going after working on the engine, it wouldn't run but couldn't bleed it, spent a day trying then charging battery back up trying again, then I had an idea, as he had a compressor I stuck the air line in the filler cap sealed it with some rag and pressurized the tank, he cracked open an injector pipe till all the air had gone, problem solved,? luckily the tank didn't burst as this was a risk?
This is the same way the easy-bleed for brakes works, I once blew one of those apart with to much pressure there was fluid everywhere?