Costco Limits Weekly Purchases of Kirkland Motor Oil Amid Global Shortage
Costco has imposed a cap of two five-quart jugs of its Kirkland Signature motor oil per customer per week as global supply constraints drive prices higher.
Costco announced that customers can now buy no more than two five-quart containers of its Kirkland Signature full-synthetic motor oil each week. The retailer introduced the limit after the product’s price nearly doubled from about $30 in April to $58 for a 10-quart package, reflecting broader pressures on the motor-oil market.
Analysts attribute the surge to tighter crude supplies caused by unrest in the Middle East and the ongoing effects of the Ukraine conflict, which have also pushed gasoline and diesel prices to record levels. Industry observers note that oil refiners prioritize gasoline production, which yields higher margins, further constraining motor-oil output.
Higher certification standards, including those set by the American Petroleum Institute and automakers such as General Motors’ Dexos program, add licensing costs that are passed on to consumers. These factors combine to create a “vicious cycle” of rising prices and limited availability.
"We have no set timeline for how long the purchase limits will remain in place," a Costco spokesperson said.
The retailer’s move may prompt similar restrictions at other U.S. stores if supply disruptions persist, especially as the Strait of Hormuz continues to limit daily oil shipments.