What Type of Engine Oil Should Be Used for Cars with a Turbocharger (T)?

[Willie]

Cars with a "T" refer to those equipped with turbocharged engines. It is recommended to use engine oil with better viscosity, such as 0W30, 5W30, 0W40, or 5W40. In addition to using the manufacturer-specified oil, both full synthetic and semi-synthetic oils are excellent choices. 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, ensuring smoother cold starts for the car. The latter number represents the kinematic viscosity of the oil at 100°C. A higher value indicates better viscosity retention under high temperatures, which can also be understood as superior lubrication performance under high-temperature conditions. The method for changing car engine oil 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 drain plug and place an oil pan underneath to collect 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; Remove the oil filter using a specialized wrench; Apply some oil to the oil seal of the new oil filter and tighten it clockwise by hand; Add new oil through the engine valve cover filler port, typically filling up to three-quarters of the oil container; Start the engine and let it run for 5 minutes, then check for any leaks around the drain plug and oil filter. If leaks are found, repairs should be made; After stopping the engine, pull out the dipstick to ensure the engine oil level is within the standard range.