New 20 ounce tumblers available now! Forum donation credit with purchase. https://www.wildguzzi.com/Products/products.htm#Tumbler
I get Valvoline oil for the diesel; comes in a 10 litre rectangular plastic container. Neatly cut the side out of it with a slitting disk on the angle grinder et voila, the perfect indestructible oil pan!. That has to classify as Guzzi content.