The race fuel is 100 oct, 205 litre drums are pain in arse, you have to be carefull storing it, and getting out of drum, some pumps wont pump the fuel out properly. 20ltr easier. we only stock 20ltr drums if you need 205 i will have to order, we allways order 20,s for our rally cars, if soom drums dont get used on that event then we use them next event and fuel dosent go off waiting.