Jump to contentSwipe for next articleIndependent Bulletin homepageDownload our appAllNewsSportCultureLifestyleMichelle ChapmanMonday 14 September 2026 22:02 BSTTrump says he could keep Iranian oil ‘like Venezuela’Costco raised the price of its Kirkland Signature motor oil to roughly $58 for a two-pack and limited purchases to two boxes per week as oil prices rise.The retailer also restricted purchases of Mobil 1 motor oil six-packs to five units per membership account.Surging crude oil prices past $109 per barrel follow Middle East supply line disruptions, impacting the base oils required for synthetic motor oil.Escalating crude costs pushed the U.S. national average price for regular gasoline to $4.32 per gallon and diesel to a record $6.23 per gallon.Oil refiners are prioritizing gasoline and diesel production over motor oil due to higher profit margins and demand, potentially tightening lubricant supplies.In fullCostco nearly doubles Kirkland motor oil prices while implementing purchase limitMore bulletinsThank you for registeringPlease refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in