“Daily Share 5.7”: Is fully synthetic lubricant suitable for all cars?
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Choosing the right type of engine oil for a car is quite important. Many people believe that fully synthetic oil is the best type of oil, so they use it in their vehicles. In fact, using fully synthetic engine oil isn’t necessarily the best choice. Due to their better flow properties at low temperatures, fully synthetic oils have a lower viscosity compared to semi-synthetic or mineral oils. In vehicles that are old or have had their engines overhauled, the pistons inside the engine may be worn, or the assembly after overhaul might not be precise, resulting in a larger gap between the pistons and the cylinder walls. Using fully synthetic oils with low viscosity can affect the engine’s airtightness, leading to issues such as oil burning or gas leakage
Choose a full-synthetic oil with 0W-50 viscosity; it works well for both new and used cars.
As someone who doesn’t have a car, I don’t know much about this research