What is the oil specification in the Octavia maintenance manual?
1 Answers
The oil specification in the Octavia maintenance manual is 5W-40, but both 5W-40 and 5W-30 can be used. For later maintenance oil changes, you can choose brands such as Mobil, Shell, Castrol, or Total. The viscosity of the 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, ensuring smoother cold starts for the car. The second number represents the oil's kinematic viscosity at 100°C. A higher value means the oil can maintain its viscosity index better at high temperatures, which can also be understood as providing better lubrication performance under high-temperature conditions. The method for changing the oil in the Octavia 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 underneath to catch the old oil until it stops flowing. Start the engine for about 30 seconds to allow the oil in the main oil passage to drain out; Use a special wrench to remove the oil filter; Apply oil to the seal of the new oil filter and tighten it clockwise by hand; Add the new oil through the engine valve cover filler port, typically filling about three-quarters of the bottle; Start the engine and let it run for 5 minutes, checking for leaks around the oil drain plug and oil filter. If any leaks are found, perform repairs; After stopping the engine, pull out the oil dipstick and check that the engine oil level is within the standard range.
