The Arrizo 5 originally uses SM-grade 10W-40 engine oil. As an economical model, the first choice is semi-synthetic oil. Individuals can decide whether to upgrade to full synthetic oil based on their financial capability. The Arrizo 5 engine does not have strict requirements for the brand of engine oil, as long as it meets the specifications. The viscosity of engine oil changes with temperature, so special attention should be paid to its performance under 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. The higher the value, the better it can maintain viscosity under high temperatures, which can also be understood as better lubrication performance under high temperatures. The method for changing the engine oil in the Arrizo 5 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 oil drain plug and place an oil pan to catch the old oil until no more oil flows out. Start the engine for about 30 seconds to allow the oil in the main oil passage to drain; Use a special wrench to remove the oil filter; Apply engine oil to the oil seal of the new oil filter and tighten it clockwise by hand; Add the new engine oil through the oil filler cap on the engine valve cover. Generally, fill about three-quarters of a bottle; Start the engine and let it run for 5 minutes, then check for any leaks around the oil drain plug and oil filter. If there are leaks, perform necessary repairs; After stopping the engine, pull out the dipstick and check that the engine oil level is within the standard range.
