What is the difference between 0w and 5w?
1 Answers
The difference between 0w and 5w lies in their minimum applicable temperatures. 5W can be used in environments as cold as -30 degrees Celsius, while 0W can be used in environments as cold as -35 degrees Celsius. The following are some precautions to take when refueling your car: 1. Do not overfill the tank: If the tank is overfilled with gasoline, the high temperatures in summer, combined with the heat generated by the car itself, can cause the gasoline to expand. To prevent the fuel tank from rupturing due to the expansion of gasoline, there is a vent hole at the top. If the tank is overfilled, gasoline may overflow through the vent hole, which can lead to spontaneous combustion if exposed to an open flame, with potentially disastrous consequences. Additionally, gasoline overflowing through the vent hole can drip onto the car body, causing some corrosion. Overfilling the tank can also easily block the vent hole. Once the vent hole is blocked, the pressure inside the tank will drop below normal, leading to poor fuel supply or even a complete lack of fuel. Overfilling the tank also increases the car's weight, thereby increasing fuel consumption. Over time, the gasoline can deteriorate, posing a safety hazard. 2. Try to avoid refueling only when the fuel light comes on: While driving, always pay attention to the fuel gauge. When the pointer shows that only a quarter of the fuel remains, you should refuel. It is best not to wait until the fuel light comes on to refuel. Modern cars use electric fuel pumps, which require gasoline for lubrication and cooling. If you frequently wait until the fuel light comes on to refuel, the fuel pump may not receive adequate lubrication and cooling, ultimately reducing its lifespan. Additionally, if the tank is left empty for too long, the temperature difference between the inside and outside can cause moisture to form inside the tank, leading to corrosion, affecting fuel quality, and increasing the engine's burden.
