---
title: "Motor oil rationing looms as Iran war squeezes supplies"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/286666028.md"
description: "The Iran war has disrupted Group III base oil supplies, crucial for synthetic lubricants, prompting warnings from AutoZone, Toyota, and major oil companies. Drivers may experience higher prices, limited selection, and potential rationing of certain motor oil grades. Experts predict supply issues to continue through 2027, with risks of panic buying and price volatility if the Strait of Hormuz remains closed."
datetime: "2026-05-17T08:15:18.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/286666028.md)
  - [en](https://longbridge.com/en/news/286666028.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/286666028.md)
---

# Motor oil rationing looms as Iran war squeezes supplies

Why shortages now: The Iran war has disrupted Group III base oil supplies, a critical ingredient in synthetic lubricants, leading to warnings from AutoZone, Toyota, and major oil companies. Immediate effects: Drivers may face higher prices, reduced selection, delayed restocking, and rationing of certain motor oil grades, particularly lighter viscosities used in newer vehicles. Long-term outlook: Industry experts expect supply strains to persist through 2027, with risks of panic buying and volatile prices if the Strait of Hormuz remains closed.

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