Diesel in the tank.

[Couch]

Wow, that's an expensive tank of fuel!   It happened to my wife many years ago. She filled up my old short wheelbase Landcruiser with diesel then started driving home, after a few kls the vehicle started coughing etc until it finally stopped and she then called me to tell me the cruiser had broken down and I better get there and fix it. Well after arriving and checking spark and anything else that could be preventing it from running, I noticed the fuel in the carby seemed very oily so I rang her only to be told she'd recently filled up with petrol.......not!!  I finished up towing it home and draining the tank, filling it up with petrol, and away we went. It was a little smokey for a while, but no damage done.
EXCEPT MY BLOODY PATIENCE!

4 hours labour at $80 per hour + GST

[Jack Abbott]

 >yes very expensive but I feel better knowing all is better as it has only done 9000

[StinkyPete]

A work colleague accidentally put petrol in a diesel van and then drove it a short distance.    It cost over $7,000 to repair the damage.

That incident prompted me to fit a "diesel misfueling cap"  ute.     http://www.raa.com.au/shop_products.asp?SecID=56&SCatID=159&CatID=158   It won't allow a smaller diameter petrol nozzle to fit into the filler neck.

[Couch]

Yes Pete, the opposite way around is a total disaster I've had numerous diesel vehicles and always been particularly careful when refueling.

[Bikebear]

I accidentally filled a diesel 60 series cruiser with petrol one day. Got about 20kms before it stopped. It was towed to the mechanics where they drained the tank and checked the compression, no problems with it and it did another 100000kms after that without a hitch. I guess it depends on whether the motor is a crappy toy or a proper truck motor.. bwahahahahaha