Costco Doubles Kirkland Motor Oil Prices Amid Purchase Caps as Global Crude Prices Surge

Costco raises Kirkland oil prices nearly double, limits purchases as global crude hits $109. Inflation pressures mount for drivers.

Editorial Desk

September 15, 2026 One Min Read

POLICY WIRE — City, Country — Costco has significantly raised the cost of its Kirkland Signature full-synthetic motor oil while imposing purchase restrictions, as rising global oil prices continue to impact consumers.

The two-pack of five-quart Kirkland oil now costs around $58, a sharp increase from about $30 last year. Shoppers are limited to buying two boxes per week, and similar restrictions apply to Mobil 1 oil, with a six-pack priced at $44 capped at five units per account.

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Global Brent crude oil surpassed $109 per barrel amid ongoing conflict in the Middle East, which has disrupted supply routes and fueled inflation concerns. As energy markets remain volatile, refiners are prioritizing fuel production over motor oil, potentially affecting availability and pricing across the industry.

Reporting by Policy-Wire (PW)

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