I've seen there are these 5 gallon pails of oil like:
https://www.walmart.com/ip/Milesyn-Sxr-Full-Synthetic-Motor-Oil-0W20-5-Gallon-Pail/49107314
I've read in another thread on this site that generally it's look upon as pretty favorable. So, why is this so cheap? What is the downside of using...