*UPDATE* 2/28/21. Kirkland Signature Full Synthetic Motor Oil is formulated to reduce wear on critical parts and maximize fuel economy. Select Costco locations have the Kirkland Signature Motor Oil (2) 5-Quart on sale for $21.99 (after instant savings), now through March 7, 2021. That is $3 off Costco’s regular price of $24.99. While supplies last. It’s also available at costco.com at a higher price due to S&H and is…