Walmart is selling 5 quart SuperTech 5W-20 Motor Oil for $9.68:
https://www.walmart.com/ip/SuperT…t/16565451
I have personally used this oil for our vehicles for the past 10 years. I change the oil every 4-5K and have had no issues to report. If you’re not picky about your oil, this may work for you. The price is typically $12 in at my local Walmart.