Auto repair shops and car dealers in Japan and the United States are not seeing quick improvements in supplies despite hopes surrounding a recent U.S.-Iran deal, according to reports from both countries. The outlets say shortages have persisted for months, including products used for routine maintenance and body work such as motor oil, paint, and automotive thinners. They link the disruption to the Middle East conflict and to shipping disruptions in the region, particularly the closure of the Strait of Hormuz. The Strait of Hormuz shutdown interferes with a significant share of global oil flows, which in turn contributes to bottlenecks for petroleum-based downstream goods. As a result, suppliers and retailers face delays and limited inventories for chemicals and lubricants used by auto shops. While the deal may eventually ease conditions, both reports emphasize that the current effects on oil and related petroleum products continue to affect availability. No outlet provides evidence of immediate restoration of inventory, pricing, or delivery times.