What Cars Are Suitable for 0W20 Engine Oil?
1 Answers
0W20 engine oil is suitable for some Japanese cars equipped with naturally aspirated engines. Generally, only Japanese cars use 0W20 oil. 0W20 engine oil is suitable for engines with weak power, low RPM, and low operating temperatures. The viscosity of engine oil changes with temperature, so special attention must be paid to its performance under both low and high temperatures. For example, in 5W-30, the first number indicates low-temperature fluidity—5W means it can withstand temperatures as low as -30°C. The smaller this number, the better the low-temperature fluidity, making cold starts smoother. The latter number represents the kinematic viscosity of the oil at 100°C. A higher value means the oil can maintain its viscosity index better at high temperatures, which can also be understood as better lubrication performance under high-temperature conditions. The method for changing the engine oil in a Ford Focus is as follows: Wait for the engine temperature to drop, allowing the oil to flow back into the oil pan; Use a wrench to loosen the drain plug and place an oil pan to catch the old oil until it stops flowing. Start the engine and let it run for 30 seconds to allow the oil in the main oil passage to drain out; Use a specialized wrench to remove the oil filter; Apply oil to the seal of the new oil filter and tighten it clockwise by hand; Add new oil through the filler cap on the engine valve cover, typically filling about three-quarters of a standard oil container; Start the engine and let it run for 5 minutes, checking for leaks around the drain plug and oil filter. If leaks are found, repairs should be made; After stopping the engine, pull out the dipstick to check if the oil level is within the standard range.
