When equipped with the 1.4 - or 1.6-liter 4Cylinder engine, the 2018 Hyundai Elantra takeS4.2 liters (4.4 quarts) of 5W-30 motor oil. The available 2.0-liter 4Cylinder engine getS4.0 liters (4.2 quarts) of 5W-20 oil. These two types of fluid are both synthetic and very similar. The biggest difference is how they perform in hotter climates. They are nearly identical in cold weather startups though. Hyundai recommends replacing this fluid in the 2018 Elantra every 5,000 miles or 6 months, whichever You arrive to first. Your maintenance interval will be based on Your unique driving habits though. Your vehicle is equipped with an oil light life that will let You know when it's time to schedule an appointment. The average cost to have this fluid replaced at a dealership is $100 to $120, including labor.
Pat T.
January 2, 2020
The 2018 Hyundai Elantra runs on a synthetic blend oil, preferred SAE 5W-30 for the 1.4L and 1.6L 4 cylinder engines. The 2.0L prefers SAE 5W-20. The oil capacity for the 1.4L is 4.4 quarts, for the 1.6L is 4.8 quarts and for the 2.0L is 4.2 quarts.
Oil capacity 4.5 quart for 2.0Elantra. It likes synthetic 5w20 lasts wayyylonger. 5000 miles andonly needto top or half a quart 130,000 miles and beenrunning full synthetic since 54000 miles
Kevin Ankrom
July 30, 2022
I’ve found that 3,500 miles on the blended oil is about max
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