Global Shortage Has Led to Motor Oil Rationing at Costco

Costco has implemented purchase limits and raised prices on its Kirkland Signature motor oil due to global supply chain pressures and increased manufacturing complexity. Modern engine requirements necessitate more sophisticated lubricant formulations, which has driven up production costs.
Why it matters
The rationing of a common consumer good like motor oil serves as a bellwether for broader inflationary pressures and supply chain constraints in the automotive sector.
Changing your own oil has traditionally been one of the easiest ways to save money on car maintenance. For Costco members, Kirkland Signature synthetic oil has made the DIY approach particularly attractive thanks to its relatively low price.
That bargain has suddenly become much less compelling. According to The Auto Wire , a 10-quart case of Kirkland Signature full-synthetic motor oil is now listed at $57.99, up from prices that hovered in the mid-$30 range for years.
The price increase isn’t the only unusual development. Costco has also introduced purchase limits, restricting members to two units every seven days, meaning customers can buy a maximum of 20 quarts during that period.
Motor oil isn’t typically something shoppers expect to see rationed, which makes the restriction noteworthy. The Auto Wire points to tightening lubricant supply alongside the increasingly expensive and complicated process of producing oil that meets modern engine requirements.
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