Home Slickdeals Costco Members: 10-Qt Kirkland Signature Full Synthetic Motor Oil $32 + Free... Slickdeals Costco Members: 10-Qt Kirkland Signature Full Synthetic Motor Oil $32 + Free Shipping By ARCOM - 22 January 2024 13 0 SHARE Facebook Twitter Go to the deal page: Costco Members: 10-Qt Kirkland Signature Full Synthetic Motor Oil $32 + Free Shipping