OK Fynsdad....I see it. All I saw before was the outline of the side of the can, sure had the outline of a R-E tool. May be light oil for the recoil cylinders. If it did leak, it would effect only the tools and other items in the enclosed box and not be an immediate concern for fire.

Googly ; as I wrote above.."Roping to lifting eyes on the rear...." Those cans are not laying flat, they are hanging from the lifting ring or one of the grille door rings by rope. In either case the spouts are not laying where the contents can run out. If they do get hit by small arms or schrapnel, the contents will run off onto the ground and not into the engine compartment and cause a fire. There's the difference and the reason why cans are not laid flat. They ALL leak as they had either a cork or rubber gasket which was easilly broken or deterriorated by saturation with oil. The cans we have today are completey different and much safer.