Properties of synthetic oil

The purpose of engine oil is simple; it protects all the parts inside an engine from friction. It is recommended to perform regular oil changes. Taking these into consideration, is synthetic oil good or not?

It seems when the weather is cold, it’s better to use synthetic oil because it’s more fluid and it also handles better the transition from hot to cold.

A minus is the double price over the normal oil.

Another advantage is that its composition contains some substances that make it last double. So less frequent oil changes are needed.

Synthetic oil is not good for old cars because of its fluidity; it may pour outside and leak. But it’s also not good for new cars because its pieces need time to rub on each other, and the oil fluidity doesn’t allow this.

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