The motor oil shortage attended industry briefings as disruption in base oil supply tightens availability and pressures prices in 2026. Reports note Iran-related conflict and Strait of Hormuz disruptions limiting Group III base oils, essential for many synthetic oils. Industry advisories signal possible temporary use of alternate viscosities in some vehicles. Retailers kick off stock awareness and procurement discussions in response. Analysts expect tighter markets and continued volatility in 2026. Automotive operators should monitor supply chains and prepare for price shifts. Manufacturer spokespeople emphasize that substitutes may change by region. Some shops note rising wholesale prices and limited inventory windows. Public advisories suggest prudent budgeting for maintenance and service intervals. The broader auto sector gets ready for potential knock-on effects on vehicle care and parts refresh cycles.