Is it safe to store engine oil in the car during summer?

[DiJuliette]

It is safe to store engine oil in the trunk. Engine oil is not classified as a hazardous material and is not flammable, so it can be safely stored in the trunk. It does not need to comply with the regulations for transporting or storing hazardous materials. However, lubricating oil is still a chemical product, so safe storage and transportation should be ensured to avoid environmental pollution. Here are some details about lubricating oil: 1. Properties of lubricating oil: It is not flammable but rather combustible. It does not have strong corrosiveness, high volatility, or difficulties in packaging and storage/transportation. 2. According to the national standard GB6944—86 "Classification and Nomenclature of Dangerous Goods": Common hazardous chemicals are divided into 7 categories based on their primary hazardous characteristics. Category 1: Explosives; Category 2: Compressed and liquefied gases; Category 3: Flammable liquids; Category 4: Flammable solids, substances liable to spontaneous combustion, and substances that emit flammable gases when wet; Category 5: Oxidizing substances and organic peroxides; Category 6: Toxic substances; Category 7: Corrosive substances. The first 5 categories are all flammable or explosive hazards, and many substances in the last 2 categories also have flammable or explosive risks. The hazard level of oil products is determined by their flash point. Those with a flash point below 45°C are considered flammable, while those above 45°C are classified as combustible.