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 constricting Group III base oils, essential for many synthetic oils. Industry advisories signal possible temporary use of alternate viscosities in some vehicles. Retailers begin stock awareness and procurement discussions in response. Analysts foresee tighter markets and continued volatility in 2026. Automotive operators need to monitor supply chains and prepare for price shifts. Manufacturer spokespeople emphasize that substitutes may differ by region. Some shops note rising wholesale prices and scarce inventory windows. Public advisories suggest prudent budgeting for maintenance and service intervals. The broader auto sector prepares for potential knock-on effects on vehicle care and parts refresh cycles.