What is an advantage of synthetic motor oil compared to conventional oil?

Synthetic motor oil is designed to provide superior performance in extreme temperatures compared to conventional oil. This advantage comes from the chemical structure of synthetic oils, which allows them to maintain their viscosity and performance characteristics across a wider temperature range.

In colder temperatures, synthetic oil remains fluid and flows better, ensuring that the engine can be lubricated effectively even in freezing conditions. This can lead to easier starts and reduced wear during cold starts. In hotter conditions, synthetic oil resists breakdown better than conventional oil, which can lead to improved engine protection and efficiency under heavy loads or high temperatures.

While the other choices might have merits in different contexts, they do not capture the distinctive performance improvements that synthetic motor oil provides, particularly when considering engine protection and efficiency across varying temperature extremes.