What Type of Vehicles is Shell 20W-50 Engine Oil Suitable For?
1 Answers
Shell 20W-50 engine oil is not a matter of which brand or type of vehicle it suits, but rather a question of which geographical regions it is appropriate for. Introduction to engine oil grades: The viscosity of lubricating oils is often indicated using SAE (Society of Automotive Engineers) grade classifications. SAE is the abbreviation for "Society of Automotive Engineers" in English. For example: SAE 15W-40, SAE 5W-40. The "W" stands for winter, and the smaller the number before it, the better the oil's low-temperature fluidity, indicating it can be used in lower environmental temperatures and provides better engine protection during cold starts. The number after the "W" (following the hyphen) represents the oil's high-temperature resistance; a higher number indicates better protection under high temperatures. Hazards of incorrectly using 20W-50 engine oil: Using this viscosity of oil in northern winters can lead to poor fluidity and weak cold-start performance, potentially causing the engine to fail to start. From the grade, 20W oil has a freezing point of -15°C, and this type of oil has high viscosity and poor fluidity in low temperatures. The "50" indicates that this oil is resistant to high temperatures. Therefore, it is suitable for use in tropical, subtropical regions, or during hot seasons in northern areas.
