Is It Safe to Store Engine Oil in the Trunk During Summer?
2 Answers
Storing engine oil in the trunk during summer is safe. Engine oil is not classified as a hazardous material and is not flammable, so it can be stored in the trunk without any issues. Storage of Engine Oil: To preserve engine oil for an extended period, it is crucial to ensure its proper sealing. Engine oil bottles are designed with a layer of tin foil film at the mouth to isolate air, while the cap serves to protect this film. The foil film is a one-time use component and cannot be restored once opened. For partially used oil, fold a thin plastic bag several times, place it over the bottle mouth, and then screw the cap back on for better sealing. Additionally, store the oil in a cool, dry, and shaded area. However, even with these precautions, the seal cannot match that of an unopened bottle. Generally, such stored oil remains usable for about six months. Beyond this period, it is not recommended for further use. When using stored oil, avoid adding the entire content and refrain from shaking the bottle, as impurities and moisture tend to settle at the bottom after prolonged storage.
I just checked this issue and found that storing engine oil in the trunk during summer does pose potential risks. Trunk temperatures can soar above 60 degrees Celsius in hot seasons, and prolonged exposure to high heat accelerates oil oxidation, leading to additive breakdown, oil degradation, and compromised lubrication. Worse yet, containers may expand and crack, causing oil leaks that contaminate the trunk, while evaporated oil vapors increase fire hazards in enclosed spaces. My advice: short-term emergency storage for a few days is acceptable, but avoid long-term placement. Ideally, relocate it to a cool, dry spot like a garage or shaded corner. Don’t forget to regularly inspect the oil packaging for integrity—using the original sealed bottle is safer. Remember, safety first: don’t overlook potential hazards for convenience, especially if your car often parks under direct sunlight, turning the trunk into an oven where accidents can easily occur.
