What brand is the FAW-Volkswagen dedicated engine oil?

[HavenMarie]

FAW-Volkswagen's original engine oil uses brands such as Shell and Castrol. The original engine oil options are as follows: Gray bucket D4-5W40 mineral oil, suitable for EA111, EA211, and MPI engines, not for TSI engines; White bucket Z4-5W40 semi-synthetic oil, suitable for TSI engines, EA888G2, EA888G3, EA211, EA111 full series SVW, TSI, MPI engines, the original engine uses this oil; Brown bucket premium 5W40 semi-synthetic oil, not for TSI engines, an upgrade of the gray bucket, suitable for EA111, EA211, and MPI engines; Gray bucket premium 5W30 full synthetic original oil, reportedly Valvoline oil repackaged, suitable for TSI, MPI, EA111, EA211, EA888G3 engines, with lower viscosity than the white bucket, not suitable for EA888-G2 series engines; Mobil 1 5W30 full synthetic oil, suitable for TSI, MPI, EA111, EA211 engines, with lower viscosity than the white bucket, not suitable for EA888-G2 series engines; Castrol Edge 5W30 full synthetic oil, suitable for TSI, MPI, EA111, EA211 engines, with lower viscosity than the white bucket, not suitable for EA888-G2 series engines. The viscosity of engine oil changes with temperature, so special attention is needed to its performance under low and high temperatures. For example, in 5W-30, the first number indicates low-temperature fluidity, with 5W representing the ability to withstand -30°C, where a smaller number means better low-temperature fluidity, making cold starts smoother. The latter number represents the kinematic viscosity at 100°C, with higher values indicating better viscosity retention at high temperatures, meaning better lubrication performance under high temperatures. The method for changing FAW-Volkswagen's engine oil is as follows: Wait for the engine temperature to drop and for the oil to flow back to the oil pan; Use a wrench to loosen the oil drain plug, collect the old oil in a pan until no more oil flows, then start the engine for 30 seconds to allow oil in the main oil passage to drain; Use a special wrench to remove the oil filter; Apply oil to the seal of the new oil filter and tighten it clockwise by hand; Add new oil through the engine valve cover's oil filler, usually filling about three-quarters of the oil bucket; Start the engine and let it run for 5 minutes, checking for leaks at the oil drain plug and oil filter, and repair if necessary; After stopping the engine, pull out the oil dipstick to check if the engine oil level is within the standard range.