Advanced Engine Oil Funnel Piercer
As this item was designed for use with 1 quart oil containers, I was unsure whether it would suit my purposes using a 5 quart container. By using the item as a hand-held piercing tool on the 5 quart container prior to inserting it into the funnel assembly, it works just fine.
Eliminates taking off the seal before pouring oil. Great little tool to add to oil changing tools.