What is the best engine oil for Golf 1.4T?

[Keegan]

Golf 1.4T's original engine oil specification is 5W-40. This vehicle requires SN-grade or higher engine oil, with an oil change capacity of 5L under normal usage. International brands recommended include Shell, Castrol, and Mobil; domestic brands recommended include Great Wall, Tongyi, and Kunlun. 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, with 5W representing the ability to 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 latter number represents the kinematic viscosity of the oil at 100°C. A higher value indicates better viscosity retention at high temperatures, which can also be understood as superior lubrication performance under high-temperature conditions. The method for changing the engine oil in Golf 1.4T is as follows: Wait for the engine temperature to drop, allowing the oil to flow back into the oil pan; Loosen the oil drain plug with a wrench and collect the old oil in a container until no more oil flows out. Start the engine for 30 seconds to allow the oil in the main oil passage to drain; Remove the oil filter using a specialized wrench; apply oil to the 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, typically filling about three-quarters of a standard oil container; 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 necessary repairs; After stopping the engine, pull out the oil dipstick to ensure the engine oil level is within the standard range.