The motor oil shortage attended industry briefings as disruption in base oil supply tightens availability and pressures prices in 2026. Reports point to 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 have started stock awareness and procurement discussions in response. Analysts expect tighter markets and continued volatility through 2026. Automotive operators should monitor supply chains and prepare for price shifts. Manufacturer spokespeople emphasize that substitutes may differ by region. Some shops observe rising wholesale prices and scarce inventory windows. Public advisories recommend prudent budgeting for maintenance and service intervals. The broader auto sector prepares for potential knock-on effects on vehicle care and parts refresh cycles.