What Kind of Transmission Fluid a 2014 Hyundai Santa Fe Takes

The 2014 Hyundai Santa Fe with a 6-speed automatic transmission is designed to use Hyundai SP-IV (also written SP4) automatic transmission fluid, or a fully compatible equivalent that explicitly states it meets Hyundai SP-IV specifications; using other ATF types, such as Dexron or Mercon, is not recommended and may damage the transmission. This answer applies broadly across most U.S.-market 2014 Santa Fe models, though owners should still verify via the owner’s manual or dealership using the exact VIN.

Understanding the 2014 Hyundai Santa Fe Transmission System

The 2014 Hyundai Santa Fe was sold mainly with a 6-speed automatic transmission, and that unit is calibrated specifically for Hyundai’s own SP-IV automatic transmission fluid. The correct fluid is essential for proper shifting, cooling, and long-term reliability, especially as these transmissions age and accumulate higher mileage.

Model Variants and Why Fluid Type Matters

The 2014 Santa Fe lineup included several trims and seating configurations (such as the Santa Fe Sport and the three-row Santa Fe), but in the North American market they shared a family of 6-speed automatic transmissions. Despite minor mechanical differences, they are all engineered to run on Hyundai SP-IV–spec ATF. Mixing in generic or incorrect fluid can cause hard shifts, hesitation, premature wear, and in severe cases, transmission failure.

The Official Recommended Transmission Fluid

Hyundai’s own materials for the 2014 Santa Fe specify a particular automatic transmission fluid formulation. This specification is the benchmark you should use when buying fluid online or at a parts store, even if the bottle does not carry a Hyundai logo.

Hyundai’s Factory-Specified ATF

For the 2014 Hyundai Santa Fe with 6-speed automatic, Hyundai specifies the following type of automatic transmission fluid:

The list below details the main fluid types and terms you will encounter when choosing ATF for this vehicle.

• Hyundai Genuine ATF SP-IV (SP4) – This is the factory-fill fluid and the primary recommended choice. It is often labeled “Hyundai Genuine ATF SP-IV” at dealerships.
• ATF meeting Hyundai SP-IV specification – Aftermarket brands (e.g., some synthetic ATFs from major manufacturers) may clearly state on the label that they are “suitable for use in vehicles requiring Hyundai SP-IV” or “meets Hyundai SP-IV.” These can be acceptable alternatives.
• Low-viscosity, synthetic-based ATF – SP-IV is generally a low-viscosity synthetic fluid, designed for modern 6-speed automatics to optimize fuel economy and shift quality.
• Not acceptable: Dexron, Mercon, SP-III, or “universal” ATFs without SP-IV approval – Fluids that only list GM Dexron, Ford Mercon, or older Hyundai SP-III specifications are not correct for this transmission.

Taken together, these points mean that the safest choice is either Hyundai Genuine ATF SP-IV purchased through a dealer or an aftermarket ATF whose label clearly specifies compliance with Hyundai SP-IV; any fluid lacking that specification should be treated as incompatible.

Why Hyundai SP-IV Is Different

Hyundai SP-IV was developed to match the internal design and hydraulic needs of the 6-speed unit in the Santa Fe. Its friction characteristics, viscosity, and additive package control clutch engagement, heat management, and valve-body operation. Using a different formulation, even if it appears similar, can alter how clutches grab, how quickly gears engage, and how the transmission computer adapts—or fails to adapt—to operating conditions.

Checking and Changing Transmission Fluid in a 2014 Santa Fe

Unlike older vehicles with a conventional dipstick, many 2014 Hyundai Santa Fe models use a more sealed-style transmission system, making checking and replacing fluid more involved than a traditional driveway check.

How to Confirm the Correct Fluid for Your Specific Vehicle

While Hyundai SP-IV is the standard answer for 6-speed automatics in this model year, there are small variations by market and engine, and the vehicle’s VIN can clarify the exact transmission model. Owners should cross-check with official sources before purchasing large quantities of fluid.

The following points explain how owners can verify the correct transmission fluid specification for their particular 2014 Santa Fe.

1. Consult the owner’s manual: In the “Specifications” or “Recommended Lubricants” section, look for “Automatic Transmission Fluid.” It should specify “Hyundai Genuine ATF SP-IV” or similar wording.
2. Check the under-hood labels: Some vehicles include a fluid specification label near the radiator support or on the transmission. This label may reference SP-IV directly.
3. Contact a Hyundai dealer with your VIN: A service department can look up your exact transmission code and confirm the correct fluid type, ensuring there are no regional or production-run anomalies.
4. Review reputable parts catalogs: Major auto parts retailers and lubricant manufacturers often have online lookup tools where you enter year, make, model, and engine to find the recommended ATF, which should list SP-IV compatibility.

Taken together, these steps create a cross-check system that virtually eliminates the risk of selecting the wrong fluid, especially important if your Santa Fe was imported or sold in a non-U.S. market.

Basic Service Considerations and Capacity

Transmission fluid capacity varies depending on whether you do a simple drain-and-fill or a more complete service. Also, this transmission is sensitive to fluid level, so the procedure should be followed closely.

The list below describes some core considerations owners should keep in mind when planning a transmission fluid service.

• Drain-and-fill vs. full exchange: A basic drain-and-fill usually replaces only a portion of the fluid (often around 4–5 quarts/liters), while the full system capacity is higher. Multiple drain-and-fills are sometimes used to gradually refresh fluid.
• Temperature-based level check: On many 2014 Santa Fe models, fluid level is checked via a fill plug with the transmission at a specified temperature range, not with a dipstick. This is why many owners choose professional service.
• Use of new washers and proper torque: The drain and fill plugs often require new crush washers and exact torque specs to avoid leaks or damage.
• Adherence to maintenance intervals: While some intervals are labeled “lifetime” under ideal conditions, many technicians recommend periodic fluid changes—especially if the vehicle tows or drives in hot, hilly, or city conditions.

Collectively, these points highlight that while fluid choice is crucial, so is the manner in which the fluid is replaced and the level is set; a correct SP-IV fluid installed incorrectly can still lead to drivability issues.

Fluids You Should Avoid

Because transmission damage can be expensive, it is critical to know not only what to use but also what to avoid. Many general-purpose fluids market themselves as “universal,” but that does not guarantee compliance with Hyundai SP-IV requirements.

Common Mistakes in Fluid Selection

Some owners and even non-specialist shops attempt to use easily available ATF types, assuming they are interchangeable. In the case of a 2014 Hyundai Santa Fe, that assumption can be costly.

The list below outlines fluids and practices that are not recommended for this vehicle’s transmission.

• Dexron-only or Mercon-only fluids: Products formulated strictly for GM Dexron or Ford Mercon specs lack the friction and viscosity properties required for Hyundai SP-IV.
• Older Hyundai SP-III fluids: SP-III was used in previous-generation Hyundai transmissions; it is not a backward-compatible choice for transmissions that require SP-IV.
• “Universal” ATF with no specific SP-IV mention: If the label does not explicitly say it is compatible with Hyundai SP-IV, it should not be used in this transmission.
• Mixing multiple ATF types: Topping off SP-IV with a different ATF to “use up what’s left on the shelf” can alter the overall fluid characteristics and cause erratic shifting or slipping.

In practical terms, avoiding these fluids and practices is just as important as selecting SP-IV, because even partial contamination with the wrong ATF can degrade the performance and longevity of the transmission.

Summary

The 2014 Hyundai Santa Fe equipped with a 6-speed automatic transmission is engineered to use Hyundai Genuine ATF SP-IV (SP4) or an aftermarket automatic transmission fluid that explicitly meets the Hyundai SP-IV specification. Other ATF types, including Dexron, Mercon, older SP-III, or “universal” fluids without SP-IV approval, should not be used. Owners are advised to confirm the specification through the owner’s manual, under-hood labels, a Hyundai dealer (using the VIN), or reputable parts catalogs before servicing the transmission, and to ensure that any fluid change is performed using the correct procedures and fill levels.

What happens if you use ATF instead of CVT fluid?

Putting automatic transmission fluid (ATF) in a continuously variable transmission (CVT) can cause serious damage, including slipping, excessive wear, poor performance, and eventual failure. This is because CVT fluid has specific friction-modifying properties crucial for the belt and pulleys to grip properly, while ATF has different characteristics and can cause the belt to slip. If you mistakenly use ATF, you should immediately have the transmission professionally flushed and refilled with the correct CVT fluid to prevent long-term damage. 
This video explains what happens when you put ATF in a CVT transmission: 40sCounty Office LawYouTube · Oct 26, 2024
Why this is a problem

• Wrong friction: CVT fluid is engineered with specific friction modifiers to ensure the belt grips the pulleys. ATF contains different additives that reduce friction, causing the belt to slip. 
• Slipping and wear: This slipping leads to inefficient power transfer, poor performance, and significant wear on the transmission’s internal components. 
• Incorrect viscosity: CVT fluid is formulated to maintain a consistent viscosity across a wider temperature range than ATF, which is essential for the continuous operation of the transmission. 
• Damage progression: You may not notice the damage immediately, but the transmission will degrade over time, potentially leading to a complete failure. 

What to do if this happens

• Stop driving immediately: Do not continue to drive the vehicle, as this will worsen the damage. 
• Get a professional flush: A complete transmission flush is necessary to remove all traces of the incorrect fluid. 
• Refill with the correct fluid: After the flush, refill the transmission with the exact CVT fluid specified by the manufacturer. 
• Consider a professional check: A qualified mechanic should inspect the transmission to assess for any existing damage. 

This video explains what to do if you put ATF in a CVT transmission: 51sKDF channelYouTube · Sep 7, 2022

What kind of transmission fluid does a 2014 Hyundai Santa Fe Sport take?

Notes: Automatic Transmission Fluid. Hyundai SP-IV Automatic Transmission Fluid (ATF). 1.32 Gallons (5 L). It is recommended to check your vehicle owner’s manual to be sure Pentosin ATF 64 is right for your vehicle.

Is all ATF +4 full synthetic?

Yes, ATF+4 is a full-synthetic automatic transmission fluid. It was developed by Chrysler for their transmissions and is now made by various licensed brands. Its synthetic base provides superior performance, including better thermal stability, reduced wear, and consistent shift quality compared to older fluids. 

• Full synthetic: ATF+4 is formulated with high-quality synthetic base stocks and an advanced additive package. 
• Chrysler specification: It meets the Chrysler Material Standard MS-9602 and is officially licensed for use in Chrysler, Dodge, Ram, and Jeep automatic transmissions. 
• Backward compatible: It is compatible with older transmissions that require ATF+, ATF+2, and ATF+3, and is recommended as a replacement for the discontinued ATF+3. 
• Performance benefits: The synthetic formula offers better protection against wear, oxidation, and foaming, leading to a longer transmission life and smoother shifting. 

What kind of transmission fluid does a Hyundai Santa Fe take?

The Hyundai Santa Fe transmission fluid type varies by model year, but commonly used fluids include Hyundai SP-III, SP-IV, or Dexron VI. Always check your owner’s manual for the specific recommendation for your vehicle, as different transmissions require different fluids, such as a 2014 Santa Fe requiring SP-IV or a 2019 model might use a synthetic blend. 
Transmission fluid types by model year 

• 2008 Hyundai Santa Fe: SP-III automatic transmission fluid (ATF). 
• 2009-2012 Hyundai Santa Fe: SP-IV automatic transmission fluid (ATF), which is used in 6-speed automatic transmissions. 
• 2013-2018 Hyundai Santa Fe: SP-IV automatic transmission fluid (ATF) for 6-speed automatic transmissions, and a different fluid (not specified) might be required for other transmission types, so always check the manual. 
• 2019 Hyundai Santa Fe: A variety of fluids are compatible, including STP Automatic Transmission Fluid, STP Dexron VI Automatic Transmission Fluid, Castrol Transmax Automatic Transmission Fluid, or Castrol Transmax Full Synthetic Automatic Transmission Fluid. 
• 2020 Hyundai Santa Fe: Uses Hyundai SP-IV automatic transmission fluid (ATF), which is a full synthetic. 

Important considerations

• Check the owner’s manual: The most reliable way to ensure you use the correct fluid is to consult your vehicle’s owner’s manual. 
• Fluid type depends on transmission: Hyundai has used different automatic transmissions over the years, and the type of fluid required is specific to the transmission installed in your vehicle. 
• Use the specified fluid: Using the wrong type of transmission fluid can cause damage to your vehicle’s transmission. It is best to use the fluid recommended by the manufacturer, or a fluid that is certified to be compatible.