The motor oil shortage attended industry briefings as disruption in base oil supply tightens availability and pressures prices in 2026. Reports cite Iran-related conflict and Strait of Hormuz disruptions restricting Group III base oils, essential for many synthetic oils. Industry advisories warn of 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 through 2026. Automotive operators need to monitor supply chains and prepare for price shifts. Manufacturer spokespeople emphasize that substitutes may differ by region. Some shops observe rising wholesale prices and limited inventory windows. Public advisories advise prudent budgeting for maintenance and service intervals. The broader auto sector is bracing for potential knock-on effects on vehicle care and parts refresh cycles.