What kind of engine oil is suitable for Jetta cars?
1 Answers
The original engine oil used in Volkswagen Jetta cars is 5w40 semi-synthetic oil certified by Volkswagen Group VW-50200. Shell and Castrol are the original engine oils adopted by FAW-Volkswagen. If you want to change the engine oil during later maintenance, you can choose brands such as Valvoline, Mobil, or Great Wall. According to the official manual, the oil change interval for Jetta models with 1.4L and 1.6L displacements is 5000km. You can use 5W-40 or higher grade engine oil. 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, and the smoother the cold start of the car. The latter number represents the kinematic viscosity of the oil at 100°C. The higher the value, the better it can maintain viscosity at high temperatures, which can also be understood as better lubrication performance under high temperatures. The method for changing the engine oil in a Volkswagen Jetta is as follows: Wait for the engine temperature to drop, and also allow 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 and let it run for 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 oil seal of the new oil filter and tighten it clockwise by hand; Add new oil through the oil filler cap on the engine valve cover. Generally, fill up to three-quarters of the oil bottle; Start the engine and let it run for 5 minutes, then check for any oil leaks around the oil drain plug and oil filter. If there are any, perform necessary repairs; After stopping the engine, pull out the oil dipstick and check that the engine oil level is within the standard range.
