The 2018 Hyundai Santa Fe requires regular transmission fluid changes to maintain optimal performance and longevity of the transmission system. This guide will provide you with essential information on how to change the transmission fluid in your 2018 Hyundai Santa Fe.

Transmission Fluid Specifications

For the 2018 Hyundai Santa Fe, use ATF SP-4 transmission fluid. This specific fluid is designed to meet Hyundai's requirements for optimal transmission performance and protection. Valvoline MaxLife Full Synthetic ATF is a suitable option that meets the SP-4 specification.

Fluid Change Interval

It's recommended to change the transmission fluid in your 2018 Hyundai Santa Fe every 30,000 to 50,000 miles. However, for optimal performance and longevity, consider changing it closer to the 30,000-mile mark, especially if you frequently drive in severe conditions.

Transmission Fluid Change Process

Preparation

  • Ensure the vehicle is on a level surface
  • Gather necessary tools: jack, jack stands, drain pan, funnel, and socket set
  • Obtain approximately 4 quarts of ATF SP-4 transmission fluid

Draining the Fluid

1. Locate the transmission drain plug underneath the vehicle

2. Place a drain pan under the plug

3. Remove the drain plug and allow the fluid to drain completely

4. Clean the drain plug and replace the crush washer if necessary

Refilling the Transmission

1. Replace and tighten the drain plug

2. Locate the transmission fill plug near the battery

3. Remove the fill plug using a 3/8-inch extension

4. Use a long funnel to carefully add new fluid

5. Add approximately 4 quarts of fluid or until it begins to overflow

Checking Fluid Level

1. Start the engine and let it reach operating temperature

2. Shift through all gears, ending in neutral

3. With the engine running, remove the level check plug

4. The fluid level is correct if it slightly drips out of the check hole

Important Notes

  • The transmission in the 2018 Santa Fe is considered "sealed" and does not have a dipstick for checking fluid levels
  • A complete flush requires special equipment and is typically done at a service center
  • Always refer to your owner's manual for specific instructions and fluid capacities

FAQs About 2018 Hyundai Santa Fe Transmission Fluid Change

    • Can I use a different type of transmission fluid?
      No, always use the specified ATF SP-4 fluid to ensure proper transmission function and avoid damage.
    • How much fluid does the transmission hold?
      The total capacity is about 7.8 liters, but a typical drain and fill will replace about 4 liters.
    • Do I need to change the transmission filter?
      The filter is internal and requires transmission removal to change. It's not typically part of routine maintenance.

By following these guidelines, you can successfully change the transmission fluid in your 2018 Hyundai Santa Fe, helping to maintain its performance and extend the life of your transmission.