Can 5w40 engine oil be used in summer for cars?

[MacOwen]

5w40 engine oil can be used in summer as its higher viscosity provides better lubrication and protection for the vehicle. Here are some precautions for using engine oil in summer: 1. Temperature: Due to the higher ambient temperature, special attention should be paid to the engine cooling system to ensure its normal operation and prevent engine overheating. 2. Oil selection: Multi-grade or single-grade oil should be chosen for summer use. 3. Heavy-duty or older vehicles: Lubricants with higher viscosity should be selected to avoid low oil pressure caused by excessively low viscosity, which may lead to unnecessary malfunctions.