Latest News Costco hikes motor oil prices and puts limits on how much members can buy 2 hours ago Financial News Wholesale retailer Costco has limited member purchases of motor oil to two units per week and raised the price. Oil prices have risen amid ongoing conflict in the Middle East and most recently Saudi Arabia’s closure of the East-West oil pipeline. Post navigation Previous LIVE: Treasury Secretary Scott Bessent testifies before House Financial Services CommitteeNext Newsom drops 2028 BOMBSHELL if Harris runs