Costco raised its Kirkland Signature motor oil price to $58 and limited purchases to two boxes weekly, while also restricting Mobil 1 oil sales to five packs per membership at $44. The increases stem from Middle East tensions disrupting oil supplies, pushing Brent crude above $109 per barrel and gasoline prices to nearly $4.32 per gallon.
Motor oil prices at Costco have surged dramatically, with Kirkland Signature synthetic oil rising from the mid-$30s to $57.99 for a 10-quart case, while the retailer has imposed purchase limits of two units per week. The shortage stems from tightening lubricant supply and the increased complexity of modern oils that must meet stringent specifications for turbocharged engines and API standards.