What Type of Engine Oil is Suitable for the Hyundai Elantra?

[Kayla]

The original engine oil for the Hyundai Elantra is produced by Mobis, a subsidiary of Hyundai, and is an SL-grade API-SM/GF-4 SAE-5W-20 semi-synthetic oil. For later maintenance and oil changes, you can choose fully synthetic oils with a grade of 5W-30 or higher, such as Castrol Edge 0W-40, Castrol GTX, Castrol Magnatec, Mobil Super 2000, Shell, and other brands. The maintenance manual requires engine oil with a grade of 5W-30 that meets the A5B5 certification. Any oil that meets the above specifications can be used. 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, making cold starts smoother. 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 better lubrication performance under high-temperature conditions. The method for changing the engine oil in a Hyundai Elantra is as follows: Wait for the engine temperature to drop and allow the oil to flow back into the oil pan; Use a wrench to loosen the drain plug and place an oil pan underneath to catch the old oil until no more oil flows out. Start the engine for about 30 seconds to allow the oil in the main oil passage to drain out; Use a specialized 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 filler port, typically filling about three-quarters of the oil bottle; Start the engine and let it run for 5 minutes, checking 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 check that the engine oil level is within the standard range.