Technician b is correct he syas that synthetic oils have a longer shelf life than traditional oils because they do not oxidize as quickly.
Deposits develop during the engine's motor oil circulation. Over time, conventional oils produce sludge from these deposits, decreasing the performance and life of your engine. Full synthetic oils, in contrast, have fewer impurities and don't form deposits or sludge. Conventional motor oil typically lasts five years when stored in unopened containers. Synthetic and semi-synthetic motor oils have a lifespan of seven to eight years. Given that their chemical makeup does not deteriorate over time, synthetic oils can easily provide a service life that is two times as long. Regular olive oil can be stored for up to three years without going bad. The incredible health benefits of coconut oil include everything from clear skin to lowering blood sugar. Long-term preservation of olive oil's properties is possible.
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