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 constricting Group III base oils, essential for many synthetic oils. Industry advisories indicate possible temporary use of alternate viscosities in some vehicles. Retailers kick off stock awareness and procurement discussions in response. Analysts anticipate tighter markets and continued volatility during 2026. Automotive operators are urged to monitor supply chains and prepare for price shifts. Manufacturer spokespeople warn that substitutes may differ by region. Some shops report rising wholesale prices and tight inventory windows. Public advisories suggest 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.