Costco is rationing its private-label Kirkland Signature motor oil, raising prices and limiting customer purchases. According to one report, the price of a 10-quart case of full-synthetic oil increases from about $30 to $57.99, and Costco caps orders at two cases per customer per week.
Both outlets describe the change as a response to supply conditions. They link the rationing to dwindling availability and broader market pressures, including continuing changes in oil prices. The company does not present a detailed explanation in the reports beyond the posted price increases and the new purchase cap, which are intended to manage inventory rather than guarantee unlimited access.
While the sources align on the core measures—higher shelf pricing and a weekly limit—one outlet also provides specific figures for the case price and the purchase cap. The other emphasizes the broader rationale tied to climbing oil prices and supply tightening, without focusing on the same price-point detail.
