Members: 4-Pack 5-Quart Kirkland Signature Full Synthetic Motor Oil (various) for $53.99 each. Shipping is free.
https://www.costco.com/p/-/kirkland...-oil-5-quart-4-pack/100687280?sh=true&nf=true
https://www.costco.com/p/-/kirkland...-oil-5-quart-4-pack/100690432?sh=true&nf=true
https://www.costco.com/p/-/kirkland...-oil-5-quart-4-pack/100690388?sh=true&nf=true
https://www.costco.com/p/-/kirkland...ic-motor-oil-4-pack/100691506?sh=true&nf=true
https://www.costco.com/p/-/kirkland...ic-motor-oil-4-pack/100691505?sh=true&nf=true
https://www.costco.com/p/-/kirkland...-oil-5-quart-4-pack/100687280?sh=true&nf=true
https://www.costco.com/p/-/kirkland...-oil-5-quart-4-pack/100690432?sh=true&nf=true
https://www.costco.com/p/-/kirkland...-oil-5-quart-4-pack/100690388?sh=true&nf=true
https://www.costco.com/p/-/kirkland...ic-motor-oil-4-pack/100691506?sh=true&nf=true
https://www.costco.com/p/-/kirkland...ic-motor-oil-4-pack/100691505?sh=true&nf=true