The density of petroleum diesel is about 0.85 kg/l, sooo about 34kg.
Bad things can happen, due not operate the engine until having the fuel tank drianed and clean diesel added.
15/40
In liters, gasoline makes up about 73 liters of the final 170, diesel and heating oil make up about 40 liters, while kerosene-type jet fuels make up about 15.5 liters.
A 1980 cm400a Honda motorcycle take 2.9 liters of 15w-40 oil. You can also use diesel engine oil if you prefer as well.
Amsoil 15-40 The exact weight the manufacture of your diesel engine recommends. Any major brand of diesel oil will be fine.
40 oz. = 1183 milliliters
1cm3=1ml40cm3=40ml=0.04l
40 liters = 40 000 cc
15 QT 15-40 Rotella
About 40 per regular wash.
Shell Rotella "T" , series 3, 15/40
5w-30 or 5w-40 is what is recommended by VW for use in your Beetle. If it's the 1.9L Diesel, use 5w-40 Diesel oil. Regular oil doesn't have the added detergents etc that this diesel brand does.