What type of engine oil does the Octavia use?

[LaJake]

The Octavia uses engine oil with a viscosity grade of 5W-40. For later maintenance, you can choose high-quality mineral oils such as Mobil Super 1000, Shell Helix HX3, Castrol GTX Gold, or Total Quartz 5000. The viscosity of engine oil changes with temperature, so special attention should 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, resulting in smoother cold starts for the car. The latter number represents the oil's kinematic viscosity at 100°C. A higher number indicates better ability to maintain viscosity under high temperatures, which can also be understood as better lubrication performance under high-temperature conditions. The method for changing the Octavia's engine oil is as follows: Wait for the engine temperature to cool down, allowing the oil to flow back into the oil pan. Use a wrench to loosen the drain plug and place an oil pan underneath 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 passages to drain out. Use a specialized wrench to remove the oil filter. Apply some new oil to the gasket of the new oil filter and tighten it clockwise by hand. Add the new oil through the oil filler cap on the engine's valve cover—generally, fill about three-quarters of the oil container. Start the engine and let it run for 5 minutes, then check for leaks around the drain plug and oil filter. If there are any leaks, perform necessary repairs. After stopping the engine, pull out the dipstick to ensure the oil level is within the standard range.