What is spow20 engine oil?
2 Answers
spow20 engine oil belongs to the highest grade of engine oil, and many Japanese cars use this type of oil. The functions of engine oil are as follows: 1. Lubrication: There is rapid relative sliding between the piston and cylinder, as well as between the main shaft and bearing bush. To prevent excessive wear of parts, an oil film needs to be established between the two sliding surfaces. A sufficiently thick oil film separates the surfaces of the relatively sliding parts, thereby reducing wear. 2. Auxiliary cooling: Engine oil has a relatively low specific heat value and is located inside the engine, so it does not inherently have a cooling effect. However, during engine operation, the heat generated by fuel combustion can be carried back to the oil tank by the engine oil and then dissipated into the air, assisting the radiator in cooling the engine. The actual cooling effect is provided by the water (or antifreeze liquid) outside the engine casing. 3. Cleaning: High-quality engine oil can carry carbon deposits, sludge, and worn metal particles from engine parts back to the oil tank through circulation. The flow of the lubricating oil washes away dirt generated on the working surfaces of the parts.
As an experienced driver who has been behind the wheel for many years, I have a good understanding of SPOW20 engine oil. Essentially, it refers to the SP-grade 0W-20 oil type, where SP represents the latest API (American Petroleum Institute) standard, indicating superior protection for gasoline engines. The 0W-20 part denotes viscosity: it flows like water during cold winter starts for easier engine ignition and reduced wear, while maintaining low viscosity in summer to improve fuel efficiency and driving stability. I recall that after switching to this oil, my car's engine noise decreased during acceleration, highway fuel consumption dropped by 1-2% per kilometer, and engine lifespan was extended—making it particularly suitable for modern small-displacement vehicles. Most synthetic oils on the market now adopt this specification, with a recommended change interval of 8,000 kilometers to prevent performance degradation due to aging. Before purchasing, it's wise to check the oil cap label to confirm 0W-20 compatibility. Using incompatible oil types may lead to insufficient combustion or lubrication issues, resulting in costly repairs.
