What type of oil does the Hyundai Elantra use?
3 Answers
The original oil specifications for the Hyundai Elantra are 5W30 and 5W40. Both 5W30 and 5W40 oils have the same low-temperature fluidity, but differ in high-temperature performance. Although 5W40 offers better high-temperature protection, its increased viscosity leads to higher engine resistance and increased fuel consumption. Considering the Elantra's engine and the differences between these two oils, 5W30 is more suitable. Oil specifications available in the domestic market include 0W16, 0W20, 0W30, 0W40, 0W50, 10W60, 5W20, 5W30, 5W40, 5W50, 10W30, 10W40, 15W40, and 15W50. Every reputable lubricant manufacturer will prominently display these specifications on the product packaging. Oil specifications explained: Oil grades consist of two parts: classification and viscosity specifications. The number following the oil classification indicates its viscosity specification. For example, in "15W-40" or "5W-40," the "W" stands for Winter. The smaller the number before the "W," the better the oil's low-temperature fluidity, indicating a lower usable environmental temperature and better engine protection during cold starts.
When I first bought my Hyundai Verna, I knew nothing and was eager to get it serviced. After going through the owner's manual several times, I found that it recommends using 5W-20 engine oil, preferably with an API rating of SN or SP. Later, I tried 5W-20 synthetic oil myself, and the engine started up faster, especially in cold winter mornings, with smoother starts and a slight reduction in fuel consumption. Oil viscosity is crucial—5W indicates good low-temperature fluidity, while 20 means it doesn’t thicken too much at high temperatures, protecting the engine from sludge buildup. If you randomly use other grades like 10W-40, it might increase friction and lead to louder engine noise. So now, I change the oil every 8,000 kilometers or so—it’s not expensive and gives peace of mind. I also recommend checking the manual or consulting professionals—don’t overlook this small maintenance step to avoid costly repairs later. Driving in the city feels stable, and keeping maintenance simple makes life easier.
As someone with twenty years of experience in car repair, I've encountered many Elantra owners, and a common issue is using the wrong engine oil. Most Hyundai Elantras recommend 5W-30 or 5W-20, with newer models (post-2020) often using 5W-20. The API rating should be at least SN, but SP-grade synthetic oil is ideal for better engine cleanliness and protection. I recall a customer who used 5W-40 oil, which led to increased fuel consumption—switching back to 5W-20 restored smooth operation. Choosing the right viscosity is crucial for protecting pistons and bearings, reducing wear, and extending engine life. I advise against cutting corners by using random oils; instead, regularly check the manual or consult a professional repair shop. With proper maintenance, the car can easily last eight to ten years, offering fuel efficiency and reliability—a small investment with significant returns.
