Obviously I wouldn't recommend the reverse but if your car is running without any apparent problems than just run it dry and put normal gas in. The alternative would be to siphon it dry. It shouldn't do any damage. Diesel just has more carbon molecules than gasoline which may lead to a little more carbon build up on your valves. Your engine probably won't run quite as good and you may not see normal operation until you have gone through a couple of tanks.
0.311 Gallons (U.S.) Diesel in 1Kg. 0.259 Gallons (Imperial/UK) Diesel in 1Kg. Density of most diesel is around 0.85 Kg/Litre or 3.22Kg/Gallon (US) or 3.87Kg/Gallon (UK).
20 US gallons of diesel is approximately 143 pounds
Probably nothing. 5 fluid ounces is about 1/25th of a gallon. At a dilution of 1 part in 750, it probably would have no effect at all.
9.2 gallons
One US gallon of diesel equates to 3.78541178 liters. Also, one Imperial gallon equates to 4.54609188 liters.
40 Liter = 8.8 Gallon (UK)
500 divided by 30 = 16.6 gallons of diesel
15.9 gallon main unleaded fuel tank
Nothing can weigh in gallons . 300 gallons of diesel is weighed in pounds or Kilos, and is about 7.0 pounds per US Gallon, - DEPENDING on temperature and SPECIFIC GRAVITY of that diesel fuel. - So ultimately 300 gallons of diesel will weigh between 2,070 and 2,160 pounds.
360 ÷ 12 = 30 gallons
17 gallon / 64 liter unleaded fuel tank
From each 42-gallon of crude oil, about 19.5 gallons of gasoline is produced.