What kind of oil does the Langdong use?
2 Answers
Langdong's original oil model is 0w-20, and the brand is Shell. If you want to change the oil during later maintenance, you can choose brands such as Mobil and Castrol. The viscosity of the oil will change with temperature, so special attention is needed to its performance under low and high temperatures. For example, 5W-30: the first number indicates low-temperature fluidity, where 5W represents the ability to withstand -30°C low temperature. The smaller this number, the better the low-temperature fluidity, making cold starts smoother. The latter number represents the kinematic viscosity of the oil at 100°C. The higher the number, the better it maintains viscosity under high temperatures, which can also be understood as better lubrication performance under high-temperature conditions. The method for changing the oil in Langdong 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 use 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; Remove the oil filter with a special wrench; apply oil to the seal of the new oil filter and tighten it clockwise by hand; Add the new oil through the engine valve cover filler port, usually filling about three-quarters of the oil container; Start the engine and let it run for 5 minutes, then check for oil leaks around the oil drain plug and oil filter. If there are leaks, repairs should be made; After stopping the engine, pull out the oil dipstick and check that the engine oil level is within the standard range.
I've been driving a Hyundai Elantra for several years, and regarding oil selection, I recommend using 5W-30 synthetic oil. This viscosity is suitable for most regions, providing quick starts in winter and even heat dissipation in summer. I've tried different brands like Shell or Mobil, and found that full synthetic is more reliable—it reduces engine wear and noise, making the drive smoother. The manual usually recommends 5W-30 or 5W-20 with an API rating of SN or SP; don’t deviate to avoid damaging the engine. The oil change interval is around 6,000 to 8,000 kilometers, and I prefer getting it done at the 4S shop while also checking the oil level. In extremely hot summers, 10W-30 offers better high-temperature protection. Always replace the oil filter together—don’t skimp on this small expense. If you drive frequently, changing the oil earlier can extend engine life. My Elantra still maintains very low fuel consumption.
