2018 Hyundai Elantra GT Oil Type & Capacity
The 2018 Hyundai Elantra GT oil type depends on the engine: the Base, Automatic Trans takes 5W-20 (4.23 quarts qt with filter); the Base, Standard Trans takes 5W-20 (4.23 quarts qt with filter); the Sport, Automatic DCT Trans takes 5W-30 (4.76 quarts qt with filter); the Sport, Standard Trans takes 5W-30 (4.76 quarts qt with filter), per the factory service manual.
Factory-spec answer
It depends on the engine:
- Base, Automatic Trans: 5W-20, 4.23 quarts with filter
- Base, Standard Trans: 5W-20, 4.23 quarts with filter
- Sport, Automatic DCT Trans: 5W-30, 4.76 quarts with filter
- Sport, Standard Trans: 5W-30, 4.76 quarts with filter
Oil capacity by engine
| Engine | Oil Type (viscosity) | Capacity w/ Filter | Capacity w/o Filter | Notes |
|---|---|---|---|---|
| Base, Automatic Trans — 2.0L Eng | API - SM, ILSAC GF-4 or Above, SAE 5W-20, 5W-30, SAE 10W-30 Above 0Deg F (-18Deg C) | 4.23 QTS. | — | — |
| Base, Standard Trans — 2.0L Eng | API - SM, ILSAC GF-4 or Above, SAE 5W-20, 5W-30, SAE 10W-30 Above 0Deg F (-18Deg C) | 4.23 QTS. | — | — |
| Sport, Automatic DCT Trans — 1.6L Eng | ACEA A5 or above SAE 5W-30 | 4.76 QTS. | — | — |
| Sport, Standard Trans — 1.6L Eng | ACEA A5 or above SAE 5W-30 | 4.76 QTS. | — | — |
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More factory specs & repair guides for your Elantra GT
🛞 2018 Hyundai Elantra GT Tire Size & Pressure →🌧️ 2018 Hyundai Elantra GT Wiper Blade Sizes →💡 2018 Hyundai Elantra GT Light Bulb Sizes →📖 2018 Hyundai Elantra GT Factory Service Manual →All fluid capacities (transmission, coolant, brakes)Powered by factory manual data from our partner network AllOEMManuals.com.
Coolant capacity
6.12 quarts (5.79 L) — 50/50 mixture of Ethylene Glycol Antifreeze and water. The engine coolant should be compatible with aluminum engine parts.
Frequently asked questions
What type of oil does a 2018 Hyundai Elantra GT take?
It depends on the engine: Base, Automatic Trans uses 5W-20; Base, Standard Trans uses 5W-20; Sport, Automatic DCT Trans uses 5W-30; Sport, Standard Trans uses 5W-30.
What is the oil capacity of a 2018 Hyundai Elantra GT?
Oil capacity depends on the engine: Base, Automatic Trans holds 4.23 quarts with filter; Base, Standard Trans holds 4.23 quarts with filter; Sport, Automatic DCT Trans holds 4.76 quarts with filter; Sport, Standard Trans holds 4.76 quarts with filter.
How often should I change the oil in my 2018 Hyundai Elantra GT?
Most 2018 Hyundai Elantra GT owners follow a 5,000–7,500 mile interval with conventional oil, or up to 10,000 miles with full synthetic. Always check the oil life monitor if equipped, and consult your owner's manual — Hyundai recommends intervals based on driving conditions, not just mileage.
Can I use synthetic oil in my 2018 Hyundai Elantra GT?
Yes. 5W-20 is widely available as a full synthetic, and synthetic is safe (often recommended) for the 2018 Hyundai Elantra GT. What matters most is matching the factory viscosity and specification, then changing the oil and filter on schedule.