What Transmission Fluid Does a Hyundai Accent Use?

A Hyundai Accent typically uses Hyundai-specific automatic transmission fluid (such as SP‑III or SP‑IV ATF) or SAE-approved manual gearbox oil, depending on the model year and whether it has an automatic, CVT, or manual transmission. The exact specification varies by generation and market, so owners should always confirm with the owner’s manual, the under-hood label, or a Hyundai dealer before changing fluid.

Understanding the Hyundai Accent’s Transmission Fluid Requirements

The Hyundai Accent has been sold worldwide since the mid‑1990s, and across its generations Hyundai has changed both the type and specification of transmission fluid required. Using the wrong fluid can lead to harsh shifting, premature wear, or even transmission failure. That is why it’s essential to match the fluid type to the exact model year, engine, and transmission (automatic, CVT, or manual).

Main Fluid Types Used in Hyundai Accent Transmissions

Over the years, Hyundai has moved from older‑style ATF formulations to newer, low‑viscosity synthetic blends designed to improve efficiency and durability. Manual transmissions use different oils entirely, and the most recent Accents with CVT use yet another dedicated fluid type. Understanding these broad categories makes it easier to narrow down what your own car needs.

Automatic Transmission (Conventional AT)

Conventional automatic transmissions in the Hyundai Accent (non‑CVT units) rely on specific Hyundai ATF specifications that evolved over time. Below are the most common types you’ll encounter.

The following list outlines the main automatic-transmission fluid specifications that have been used in Hyundai Accent models, along with their typical applications by generation and year.

• Hyundai ATF SP‑II / SP‑III – Used in older 4‑speed automatics (primarily late 1990s–mid‑2000s Accents). Many markets specify SP‑III; SP‑II is largely historical and usually superseded by SP‑III.
• Hyundai ATF SP‑IV – A later synthetic ATF used in newer 4‑ and 6‑speed automatic transmissions (roughly from late 2000s to mid‑2010s Accents, depending on market). Variants include SP‑IV, SP‑IV(M), and SP‑IV-RR; which variant applies depends on the exact transmission code.
• Low‑viscosity ATF for 6‑speed units – On some 1.6‑liter 6‑speed automatics (common in North American Accents from around 2012 onward), Hyundai specifies SP‑IV or a derivative, with “filled for life” intervals yet still serviceable under severe use.
• Market‑specific Hyundai ATF – In some regions, Hyundai-branded ATF will be labeled simply “ATF SP‑III” or “ATF SP‑IV” without visible sub‑code; these still must match the part number for your transmission.

In practice, most modern (non‑CVT) Hyundai Accent automatics from about 2010 onward will need some form of SP‑IV ATF, while older models will use SP‑III. Because these fluids are not fully interchangeable, always verify against the VIN and official parts catalog before purchase.

Continuously Variable Transmission (CVT) Models

Newer Hyundai Accent models in several markets, particularly from the late 2010s onward, began using a continuously variable transmission (CVT) instead of a traditional automatic. These units require a dedicated CVT fluid.

The key characteristics of CVT fluid for modern Hyundai Accent models can be summarized in this list.

• Hyundai/Mobis CVT Fluid – Typically labeled as “IVT” or “CVT” fluid for Hyundai/Kia vehicles; formulation is different from SP‑III or SP‑IV ATF.
• Strict non‑interchangeability – Standard ATF (SP‑III or SP‑IV) must not be used in place of CVT fluid, as it can cause serious transmission damage.
• Dealer-branded fluid recommended – Hyundai strongly recommends genuine or Hyundai-approved CVT fluid due to the sensitivity of belt‑and‑pulley CVT designs.
• Service intervals vary – Many manuals suggest inspection around 60,000 km (about 37,000 miles) under “severe” driving, with replacement based on condition and driving pattern.

If your Accent has an “IVT” badge or your documentation refers to a CVT/IVT, you should assume it requires a special Hyundai CVT fluid and confirm the exact part number before any service is done.

Manual Transmission (MT)

Manual Hyundai Accent models use gear oil rather than automatic transmission fluid. This oil must provide the right balance of lubrication and synchronizer compatibility, which is why specification matters as much as viscosity.

The following points highlight the typical fluids and specifications used in Hyundai Accent manual transmissions over recent generations.

• API GL‑4 gear oil – Most Hyundai Accent manuals require an API GL‑4, not GL‑5, because GL‑5’s higher EP additive levels can harm brass synchronizers in some units.
• Typical viscosity: 75W‑85 or 75W‑90 – Hyundai often specifies 75W‑85 or similar low‑viscosity manual transmission oil; consult the manual for the exact grade.
• Hyundai Genuine Manual Transmission Fluid – In many regions, Hyundai sells its own branded GL‑4 MTF (Manual Transmission Fluid) that meets the exact friction requirements for factory gearboxes.
• Limited compatibility with universal fluids – While some high‑quality aftermarket GL‑4 MTFs may be suitable, Hyundai commonly recommends using their genuine fluid or a proven equivalent that specifically lists compatibility with Hyundai manual transmissions.

Although manual transmissions are generally more tolerant than automatics, using the wrong GL classification or viscosity can lead to notchy shifts, increased wear, and, over time, potential failure of synchronizers or bearings.

How to Identify the Correct Fluid for Your Specific Hyundai Accent

Because Hyundai has altered specifications over time and across markets, there is no single universal answer that covers every Accent. Instead, owners must cross‑check model details and documentation to confirm the right fluid type and quantity.

Key Information Sources

Several official and reliable references can help you identify the correct transmission fluid for your Hyundai Accent without guesswork.

• Owner’s manual – The primary reference: look under “Specifications,” “Lubricants and Capacities,” or the transmission maintenance section for the exact ATF or MTF specification.
• Under‑hood labels – Some models include labels on the transmission dipstick, filler plug, or near the radiator support stating, for example, “USE ATF SP‑IV ONLY.”
• Hyundai dealership or authorized service center – With your VIN, a dealer can identify the transmission model code and the approved fluid specification and part number.
• Official Hyundai service portal – In some regions, Hyundai provides online access to service information where you can look up fluid types by VIN or model code.
• Professional parts catalogues – Respected OEM parts databases can be used by mechanics or parts stores to match the correct fluid to your car’s transmission code.

Relying on these sources, rather than generic advice, significantly reduces the risk of using an incompatible fluid, especially for boundary years where Hyundai changed transmissions mid‑generation.

Why Using the Correct Transmission Fluid Matters

Transmission fluid is far more than just a lubricant; in automatic and CVT systems it also acts as a hydraulic medium, coolant, and friction‑control agent. Even in manual gearboxes, the right friction characteristics are crucial for smooth, synchronized shifts.

Potential Problems from Incorrect Fluid

Using the wrong fluid in a Hyundai Accent can lead to a range of issues, some of which may not appear immediately but build over time.

The following list outlines common problems that can arise from using incorrect or low‑quality transmission fluid.

• Harsh or delayed shifting – In automatics, the wrong viscosity or friction modifiers can cause flares, bangs, or delays between gears.
• Shuddering or slipping – Mismatched friction properties can lead to torque converter or clutch pack shudder and eventual slippage.
• Overheating and accelerated wear – Non‑approved fluids may not manage heat properly, causing seals, clutches, and bearings to degrade faster.
• Synchronizer damage in manuals – Using GL‑5 gear oil or a fluid with unsuitable additives can attack brass/bronze synchros, resulting in grinding shifts.
• Void or limitation of warranty – For vehicles still under warranty, using non‑approved fluids can complicate or void transmission-related claims.

Because transmission repairs are typically expensive, investing in the exact recommended fluid and correct service procedure is usually far cheaper than risking long‑term damage.

Service Intervals and Best Practices

Hyundai’s maintenance schedules differ by region and driving conditions, but most guidelines distinguish between “normal” and “severe” service. Many owners fall into the severe category without realizing it, especially if they frequently drive in traffic, tow, or operate in hot climates.

Typical Change Intervals

While the precise mileage or time interval should always come from the owner’s manual, there are general patterns in Hyundai Accent maintenance recommendations.

Below is an overview of common service interval practices for Hyundai Accent transmissions.

• Automatic transmissions (SP‑III/SP‑IV) – Often inspected around 60,000–90,000 km (about 37,000–56,000 miles) and changed earlier under severe driving; some newer units are labeled “filled for life” but may still benefit from a fluid change around 100,000–120,000 km in harsh use.
• CVT/IVT units – Frequently inspected at relatively short intervals (e.g., 60,000 km) with replacement based on fluid condition and usage; many technicians recommend proactive changes to extend CVT lifespan.
• Manual transmissions – Often have longer suggested intervals, sometimes 90,000–120,000 km or more, but periodic replacement is still advised to remove contaminants and maintain shift quality.
• Severe vs. normal service – Stop‑and‑go city driving, high heat, frequent short trips, mountainous routes, and towing all qualify as “severe,” justifying more frequent checks and changes.

Scheduling fluid checks and changes within or slightly ahead of these ranges, especially in demanding conditions, can significantly extend the life of your Hyundai Accent’s transmission.

Practical Advice for Hyundai Accent Owners

For owners, the main challenge is translating technical specifications into clear actions when buying fluid or speaking to a mechanic. A few practical steps greatly reduce the risk of mistakes.

Before You Buy or Change Fluid

Careful preparation can ensure that any transmission service on your Hyundai Accent uses the right products and methods.

• Confirm your exact year, engine, and transmission type – Determine whether you have a traditional automatic, CVT/IVT, or manual gearbox; this is essential before discussing fluid.
• Check the owner’s manual and under‑hood labels – Look for explicit mentions such as “ATF SP‑IV only” or “API GL‑4 75W‑85.”
• Use your VIN with a dealer or parts specialist – This helps identify the precise transmission model and corresponding fluid specification and Hyundai part number.
• Insist on specification match, not just brand – If using aftermarket fluid, verify that it explicitly meets Hyundai’s stated spec (e.g., “compatible with Hyundai SP‑IV applications”).
• Document what was used and when – Keep receipts and note the fluid type and mileage at each service for future reference and potential warranty discussions.

By taking these steps, you ensure that the shop or mechanic uses the correct fluid and that you have a clear record of maintenance, which helps preserve both reliability and resale value.

Summary

A Hyundai Accent does not use a single universal transmission fluid: older automatics typically require Hyundai ATF SP‑III, many newer automatics need Hyundai ATF SP‑IV (or a specific variant), CVT-equipped models use dedicated Hyundai CVT/IVT fluid, and manual models generally require API GL‑4 gear oil in grades such as 75W‑85 or 75W‑90. The only reliable way to be certain for a particular vehicle is to consult the owner’s manual, check any under‑hood labels, and, if necessary, confirm via VIN with a Hyundai dealer or trusted service provider. Using the correct, specification‑matched fluid and observing appropriate change intervals is essential to maintaining smooth operation and extending the life of your Hyundai Accent’s transmission.

What type of transmission fluid does Hyundai use?

Genuine Hyundai Fluid 00232-19012 SP III Automatic Transmission Fluid – 1 Quart.

What kind of transmission fluid does a 2013 Hyundai Accent take?

The 2013 Hyundai Accent uses SP-IV (or ATF SP4) automatic transmission fluid for its automatic transmission, and 75W-85 GL-4 for its manual transmission. It is crucial to use the correct type for your specific transmission (automatic or manual) to prevent damage. 
This video explains the process of changing transmission fluid in a Hyundai Accent: 58sEverythingAvronYouTube · Jan 6, 2021
Automatic Transmission

• Fluid Type: SP-IV (or ATF SP4) Automatic Transmission Fluid
• Recommendation: Use a genuine Hyundai fluid or a compatible third-party brand that specifies SP-IV. 

Manual Transmission

• Fluid Type: 75W-85 GL-4 Manual Transmission Fluid 
• Recommendation: A manual transmission fluid with the correct viscosity grade and GL-4 rating is required. 

Important Considerations

• Check your owner’s manual: Always confirm the correct fluid type in your vehicle’s owner’s manual, as this information is the most accurate source. 
• Automatic vs. manual: Do not use automatic transmission fluid in a manual transmission or vice versa, as they are not interchangeable. 
• Fluid capacity: Be aware of the correct fluid capacity when refilling. The manual transmission capacity is approximately 1.8 liters (about 1.9 quarts), according to AMSOIL. 

What kind of transmission fluid does a Hyundai accent use?

Pentosin – FFL4 Full Synthetic Double Clutch Transmission Fluid: 1 Liter (Part No. 1080107)

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