What type of engine oil is used in the Tiguan L?
1 Answers
The Tiguan L uses 5W40 engine oil or 0W40 fully synthetic engine oil. If you wish to change the oil during later maintenance, you can choose from three different types of oil: 5W-30 Castrol fully synthetic, 5W-40 OEM fully synthetic, or 5W-40 OEM mineral oil. 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, ensuring smoother cold starts for the vehicle. 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 superior lubrication performance under high-temperature conditions. The method for changing the oil in the Tiguan L 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 a thin layer of oil to the gasket of the new oil filter and hand-tighten it clockwise. Add the new oil through the filler cap on the engine valve cover. Typically, fill about three-quarters of a standard oil container. Start the engine and let it run for 5 minutes, checking for any leaks around the drain plug and oil filter. If leaks are found, perform necessary repairs. After stopping the engine, remove the dipstick and check that the oil level is within the standard range.
