What is the applicable range of 5W30 engine oil?

[CooperMarie]

5W30 engine oil is applicable for driving in environments above -30 degrees Celsius. Meaning of engine oil symbols: W stands for winter, indicating use in winter. The number before W (0) represents the viscosity at low temperatures. The smaller the number, the better the fluidity at low temperatures and the stronger the cold resistance. 30 refers to the viscosity at 100 degrees Celsius. The larger the number, the higher the viscosity and the stronger the high-temperature resistance. Functions of engine oil: Engine oil is lubricating oil for the engine, playing important roles such as lubrication, cleaning, cooling, sealing, reducing wear, vibration damping, and rust and corrosion prevention. It is known as the blood of a car.

[AuroraRose]

As an average car owner, I've been using 5W-30 engine oil for many years. It's perfect for my Toyota Corolla - starts the engine smoothly in cold winters without knocking sounds, and maintains proper viscosity during summer traffic jams while being fuel-efficient and protecting components. It's mainly suitable for vehicles in temperate and cold regions, working well with most gasoline-powered SUVs. This oil provides comprehensive engine protection, ensures quiet operation, extends engine life, and has long maintenance intervals. It's also easy to change yourself. Particularly practical for urban commuters during rush hours - keeps the engine stable without overheating, with minimal malfunctions. Highly recommended for daily drivers - simple, reliable, and worry-free.

[VanLyla]

I'm a car enthusiast who often experiments with engine oil. 5W-30 has wide applicability - it facilitates cold starts in winter with its low-temperature fluidity, while providing moderate viscosity for strong protection in summer. Suitable for most gasoline vehicles, whether turbocharged or hybrid, it performs well across temperatures from sub-zero to normal ranges. Ideal for both daily commutes and long-distance driving, it offers fuel efficiency, quick engine response, reduced carbon deposits, and extended engine life. Even at high speeds, it minimizes oil consumption. Highly recommended for fellow car lovers to try.

[JohnLynn]

Having driven for over twenty years, I've tried all kinds of oils, and 5W-30 is the most practical for daily driving. Like my old Ford, it provides excellent protection on regular roads, starts quickly in winter, saves fuel and money, and works well in moderate temperature regions. Don't choose oils that are too thin or thick. For beginners, this is convenient and not complicated.