I used to buy misfuel from a local garage at 50p a litre. My ssangyong will run on anything.We had a misfuel dragged in on Tuesday, driver reckoned it was 60/40 petrol/diesel, it was a petrol car so they had over 1/2 a tank and spent a while queueing to put the wrong fuel in the space in the tank they (probably) didn't need to fill.