I picked up a new, well one time filled with hydraulic oil and then drained, steel barrel at my local JD dealer for free. The barrels were labeled, stored under cover and all bungs tight with only a dribble of clean hydraulic oil on the bottom for me to clean. Closed head steel barrel, I took two. 0$.
I picked up a rotary hand pump from HF. It mounts to the big bung in the barrel head and takes 80 easy cranks to fill the 5 gallon jug with diesel from the barrel. I added a 10' piece of clear PVC hose to the pump since it only came with a spigot. 11$ for pump, 10$ for tube and plug.
I fill both barrels with 30 gallons of off-road diesel at my local fuel depot. It is red and I don't pay road tax plus I think the price is more competitive. High turnover at the fuel depot with their underground tanks being filled once or twice daily with new diesel fuel. Safeway price this last fillup would have been 3.29 per gallon, OffRoad price at depot was 2.14$ per gallon.
You can do the math to see the huge savings here. Beyond just money savings is the huge convenience factor of having 60 gallons of fuel available 24 hours a day in my shed.
It is one thing if I had a diesel pickup and could just fill my 5 gallon jugs when I get truck fuel but I drive a gas engine truck and it means a seperate trip to get diesel fuel at a station. Yes the fuel would be fresher but I have had no problem with 3-4 month old fuel. I add a dose of Powerservice to each 5 gallon jug that I fill with off-road diesel.
It is very red like blood.