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Checking the engine oil level

Engine oil is used for lubricating, cooling, and operating various hydraulic components in the engine. Engine oil consumption while driving is normal, and it is necessary to check and refill the engine oil regularly. Also, check and refill the oil level within the recommended maintenance schedule to prevent deterioration of oil performance.

Check the engine oil following the below procedure.

Gasoline engine

  1. Follow all of the oil manufacturer's precautions.

  2. Be sure the vehicle is on the level ground in P (Park) with the parking brake set and the wheels blocked.

  3. Turn the engine on and warm the engine up until the coolant temperature reaches a constant normal temperature.

  4. Turn the engine off, remove the oil filler cap and pull the dipstick out. Wait for 15 minutes for the oil to return to the oil pan.

  5. Wipe the dipstick clean and re-insert it fully.

    Smartstream G1.6 T-GDi
    2025 Hyundai Tucson Smartstream G1.6 T-GDi engine oil dipstick image. A white dotted circle highlights the dipstick handle location in the engine bay. A magnified callout shows the gauge tip with 'F' (Full) and 'L' (Low) markings. Explains the function of checking if the oil level is within the proper range.

    2C_EngineOilGaugeGasoline

    Smartstream G2.0
    2025 Hyundai Tucson Smartstream G2.0 engine oil dipstick image. The image displays the location of the dipstick handle labeled 'ENGINE OIL' in the engine compartment. A magnified inset shows the dipstick gauge with 'F' and 'L' markings. This explains the function of checking the engine oil level.

    2C_EngineOilGauge_SmartstreamG2.0

    Smartstream G2.5 GDi
    2025 Hyundai Tucson Smartstream G2.5 GDi engine oil dipstick image. A dotted circle highlights the dipstick handle. A magnified view shows the gauge tip with F (Full) and L (Low) markings. Explains the function of checking the proper engine oil level range.

    2C_EngineOilGaugeGasoline_3

  6. Pull the dipstick out again and check the level. The level should be between F (Full) and L (Low).

    Smartstream G1.6 T-GDi
    2025 Hyundai Tucson engine oil refill image. An oil bottle is shown pouring liquid into the oil filler opening on the engine cover of the Smartstream G1.6 T-GDi engine. This illustrates the process of adding engine oil to the vehicle.

    ODN8089105

    Smartstream G2.0
    2025 Hyundai Tucson Smartstream G2.0 engine oil refilling image. An oil bottle is shown pouring oil into a funnel inserted into the oil filler opening on the engine cover. Describes the process of adding engine oil to the vehicle.

    ONX4E090058

    Smartstream G2.5 GDi
    2025 Hyundai Tucson Smartstream G2.5 GDi engine oil refilling image. An oil bottle is shown pouring engine oil into a funnel inserted into the oil filler opening on the engine cover. This illustrates the process of adding engine oil to the vehicle.

    ONX4E090059

  7. If the oil level is below L, add enough oil to bring the level to F.

Use only the specified engine oil (Refer to "Recommended lubricants and capacities" section in chapter 2).

To prevent damage to your engine:

  • Do not spill engine oil when adding or changing engine oil. Wipe off spilled oil immediately.

  • The engine oil consumption may increase while you break in a new vehicle and it will be stabilized after driving 6,000 km (4,000 miles).

  • The engine oil consumption can be affected by driving habits, climate conditions, traffic conditions, oil quality, etc. Therefore, it is recommended that you inspect the engine oil level regularly and refill it if necessary.

Diesel engine
Smartstream D2.0
2025 Hyundai Tucson engine oil dipstick image. A callout displays the dipstick gauge with zones A, B, C, and D. Zone C is the textured area between the F (Full) and L (Low) marks. Explains how to inspect the engine oil level.

2C_EngineOilGauge_SmartstreamD2.0

Range

Required action

A

Recommended to contact an authorized HYUNDAI dealer.

B

Do not refill engine oil.

C

You may add engine oil as long as the oil level does not go above the C range.

D

You must add oil and make sure that the oil level is in the C Range.

Engine oil is used for lubrication and cooling, so it is gradually consumed during driving the vehicle. Regularly check and manage the oil level using the following procedure.

  1. Follow all of the oil manufacturer's precautions.

  2. Be sure the vehicle is on the level ground in P (Park) with the parking brake set and the wheels blocked.

  3. Turn the engine on and allow the engine to reach normal operating temperature.

  4. Turn the engine off, remove the oil filler cap and pull the dipstick out. Wait for 15 minutes for the oil to return to the oil pan.

  5. Wipe the dipstick clean and re-insert it fully.

  6. Pull out the dipstick out again and check the level. The level should be in the C range.

Smartstream D1.6
2025 Hyundai Tucson Smartstream D1.6 engine oil refilling image. A hand is shown pouring engine oil from a container into a funnel inserted into the oil filler port on the engine. This illustrates the process of adding engine oil to the vehicle.

2C_EngineOilfillercap_SmartstreamD2.0

If the level is in the D range, add enough engine oil to bring the level up to the C range.

Use only the specified engine oil (Refer to "Recommended lubricants and capacities" section in chapter 2).

To prevent damage to your engine:

  • Do not spill engine oil when adding or changing engine oil. Wipe off spilled oil immediately.

  • The engine oil consumption may increase while you break in a new vehicle and it will be stabilized after driving 6,000 km (4,000 miles).

  • The engine oil consumption can be affected by driving habits, climate conditions, traffic conditions, oil quality, etc. Therefore, it is recommended that you inspect the engine oil level regularly and refill it if necessary.