Overview
- Costco raised its two‑pack Kirkland full‑synthetic 10‑quart case to $57.99 and set limits of one transaction per membership with a maximum of two units every seven days, and it capped Mobil 1 sales at five per membership, according to the company’s product listings.
- The retailer’s move was reported on Monday and reflects an immediate downstream effect of tightened supplies for synthetic motor oil used by do‑it‑yourself drivers and small fleets.
- Industry groups and analysts link the squeeze to a shortage of premium Group III base oils after Middle East disruptions and damage to facilities reduced exports that the U.S. historically sourced from the Persian Gulf.
- Higher crude prices above $100 per barrel and record U.S. diesel and gasoline prices have widened refining margins, giving refiners an economic reason to make more fuel and less base oil, which raises input costs for motor‑oil makers.
- ILMA and other industry sources warn the pressure could last into 2027 and it is uncertain whether other major retailers or service shops will follow Costco’s price hikes or purchase caps, a development that could raise oil‑change costs for consumers and small businesses.