Home » Toyota ATF type T-IV vs Dexron III

Toyota ATF type T-IV vs Dexron III

Toyota brand goods are among the most reliable in the market. On your car’s transmission dipstick or in the owner’s handbook, you’ll find a specific Toyota automatic gearbox fluid, commonly known as ATF. Only at a dealership may Toyota brand ATF be bought. The price will be similar to aftermarket synthetic ATF, and having it aboard will provide you with a piece of mind that your automobile has everything it needs.

There may be some uncertainty about what kind of Toyota ATF to use, especially for older cars. Manuals from previous years will suggest transmission fluids that have been phased out, but there is no need to worry; Toyota has revised answers for this problem. Toyota ATF Type T-IV is the current version of discontinued types T, T-II, and T-III. It’s been used in previous Toyota models instead of those. Even if your transmission fluid advises you that it will never need to be changed, have it flushed at the recommended interval by your owner’s handbook. Low fluid levels, thickening, discoloration, or a burnt odor are all possible indications of an ATF problem. All of which may be detected with the dipstick from ATF.

Honda ATF DW1 vs Z1

T-IV has been a popular automatic transmission fluid since its creation in 1998. It continues to be one of the best automatic transmission fluids on the market, protecting automobiles from serious internal moving part damage.However, the

This car is equipped with a newer T-IV Transmission Fluid Substitute that has more advanced technology and a new formulation, which improves driveability.

This post is more than you could ever need if you’re looking for a T-IV substitute. Let’s look at the best T-IV alternatives, as well as features and applications!

Type T-IV

The ATF TYPE T-IV is a fully synthetic automatic gearbox fluid developed to fulfill the service fill need of TOYOTA vehicles with AISIN WARNER gearboxes, such as the LGV. It’s specially formulated for high-performance oil that’s used in slip-controlled lockup automatic transmissions. Transmission power is increased by superior features for quiet and smooth gear changes and efficient transmission power under demanding driving conditions.

The highest degree of protection from the ATFT TYPE T-IV, the most protective type of transmission available, ensures that parts do not wear prematurely. With this high level of protection, you can trust in the transmission’s durability and dependability over time.

API GL-4 is suitable for automatic transmissions with JWS 3309 or GM 9986195 specifications, including models with a standby mode and manually shifted gearboxes. It’s appropriate for use in DAIHATSU, SCION, SUVs, light commercial vehicles, and other Asian, American, Korean, and European OEMs that require ATF T-IV fluid.

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Toyota ATF T-IV Automatic Transmission Fluid

Toyota ATF T-IV Automatic Transmission Fluid

This car model has an automatic gearbox oil from Toyota. Toyota is a Japanese automobile manufacturer that sells automobiles all over the world. They’re well-known for their dependability, attractive appearance, and diversity of the range. The maker only recommends utilizing genuine technical fluids to guarantee the longevity and functionality of the equipment. Because Toyota doesn’t have its own refineries, it relies on manufacturers in Japan for domestic sales or ESSO in America for export markets.

Toyota T-IV is an oil for automatic transmissions with a standby system. It’s made of red synthetic with a complex of balanced additives, and it has a complex structure. Provides smooth and precise gear shifting in any operating mode. Has shear-resistant properties. It has exceptional viscosity-temperature characteristics, and it can withstand temperatures as low as -50 degrees Celsius without issue. Fuel efficiency is enhanced.

Density, at 15°C 0.852
Flash point, °C 185
Boiling point, °C 316
Pour point, °C -48
Viscosity, at 40°C, cSt 34.0
Viscosity, at 100°C, cSt 7.3


Toyota ATF T4 is designed for AISIN automatic gearboxes with a standby system. This fluid may be used in Toyota, Lexus, Daihatsu, Scion automobiles (passenger cars, small commercial vehicles), and off-road vehicles because of the specification of ATF Type T-IV.

Toyota ATF T4 is intended to be used for a long time, like most current automatic transmission fluids. However, in order to maintain the efficiency of the box, breakdowns, and other malfunctions, it is recommended that you replace the oil every now and then. After reaching 90 thousand kilometers on the odometer, this should be done for the first time. In certain situations

How to recognize a fake?

Toyota T-4 comes in a plastic liter canister as well as a four-liter tin. The second, because specific equipment is required, is more difficult to duplicate. In general, before buying anything, be sure to examine the quality of the packaging carefully. The entire plastic of the canister is smooth, dense, and free of uneven rough seams, flaws, and signs of opening. Flaws may only be at the bottom of the container (for example). It’s necessary to include a batch code, date of production and bottling dates, as well as indication of the manufacturer. Labeling text is represented in several languages ​​(for global sales), with no mistakes, frayed or fuzzy areas. Tolerances are given.

IMPORTANT! The item with number 08886-81016 is no longer available. A new article has been added: 08886-01705. If an oil of a new bottling date is discovered on sale but with an old article number, it’s a phony.

Advantages and disadvantages

Transmission oil Toyota T-IV has the following advantages:

  • high viscosity index;
  • carefully balanced additive package;
  • effective protection of parts and mechanisms from wear;
  • optimal frictional performance;
  • smooth gear shifting in any conditions;
  • excellent viscosity-temperature properties;
  • high shear stability;
  • 100% automatic transmission protection even at the highest loads;
  • ensuring gear shifting without failures, jerks and hesitations;
  • guarantee of well-coordinated work of all components of the transmission.

According to auto mechanics, Toyota ATF T-4 fulfills all of the necessary criteria. If you use it only for what it’s designed for, there are no disadvantages. Owners of Toyota cars who provide excellent reviews agree.

Backward compatible with TYPE T, T-II and T-III fluids.

Toyota ATF T-IV Equivalent

  • MMC, Kia-Hyundai SP-III
  • GM Dexron IIIH
  • GM Dexron IIIG
  • Ford Mercon V
  • Aisin AW-1
  • Allison C-4
  • JWS 3309
  • JASO 1A


Extended protection

Wear resistance, enhanced shear stability, and oxidation resistance in high temperatures are all important aspects to extend the transmission system life.

Transmission cleanliness

Silica helps to reduce free acidity and prevent undesirable acidification, thus improving the overall cleanliness of your system.

ATF T-IV Change Intervals

To ensure the longest possible fluid life, we use a fully automated and state-of-the-art system to not only remove all sludge, varnish, rust, corrosion, and other hazardous deposits from engine rooms.

Instead of T-IV, which was rare and costly in the local market at the start of the 2000s, Dexron III was successfully utilized. Later, multi afds were produced by independent companies. Then import of genuine T-IV increased dramatically, and as a result it became the most accessible and inexpensive T-IV meet 3309 spec – so car owners with similar Aisin ATs bought it instead.

Although using Dexron spec ATF instead of T-IV has no ill effects, it is no longer practical. Depending on the circumstances, genuine Type T-IV or any other type ATF that meets JWS 3309 standards may be used as an equally viable option.

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Dexron III

Dexron III is the most common type of automatic transmission fluid in Toyota vehicles, although it’s not available. Dexron III is used in most Toyota models and Lexus automobiles (a Toyota subsidiary). It replaces previous versions I and II in older vehicles, much as T-IV does. The fluid in your gearbox is the same type as that used in most foreign vehicles. It’s compatible with a wide range of temperatures and has excellent performance, making it an excellent choice for automotive transmissions across the world. In recent years, Japanese gearbox manufacturers have started to use Dexron-based systems.

It’s only natural that Toyota would include these more efficient gearboxes in their automobiles. It’s worth noting that Dexron and ATF are not interchangeable in most cases. Toyota should adhere to the manufacturer’s recommendations when using ATF.

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Toyota ATF Dexron II Automatic Transmission Fluid

Toyota ATF Dexron II Automatic Transmission Fluid

Toyota Dexron 3 synthetic transmission oil is used in power steering, automatic transmissions, and power boxes of agricultural, construction equipment, and industrial equipment. The usage temperature range is -40 to below 0 degrees Celsius. It’s primarily utilized to prevent scoring, clean surfaces, as well as partial cooling of loaded components.

Density, at 15°C 0.861
Flash point, °C 156
Boiling point, °C
Pour point, °C
Viscosity, at 40°C, cSt 32.3
Viscosity, at 100°C, cSt 7.0

Toyota Genuine Parts Transmission Fluid is the original equipment manufacturer (OEM) fluid that your car was designed with. When you choose a genuine OEM fluid, you can trust in the high quality and efficacy of the product without having to worry about whether or not it will function together with your vehicle. It’s critical to safeguard your investment, and picking the appropriate fluids may be difficult. So don’t put yourself through the trouble of looking for and purchasing something that could work by jeopardizing another minute. Choose genuine OEM fluid instead of imitation fluids that may damage your vehicle.


Automatic Transmission And Power Steering Fluid is compatible with the following systems:

  • The first generation of Dexron was released in 1973 by GM (General Motors). The API classification was utilized as a starting point, with the mineral oil of the second group. Dextron 3 has a synthetic core and an increased viscosity index of 110-115 units, according to API class III.
  • The Toyota PSF is a fluid that lubricates the power steering system. It’s often shortened to “PSF.” The fluid, which is sometimes called “power steering fluid,” is used in the power steering system.

Advantages and disadvantages

Toyota Dextron 3 has the following advantages:

  • Excellent viscosity specifications.
  • Outstanding durability.
  • Saving fuel consumption.
  • Even low temperatures do not affect the fluidity of the oil.
  • Foaming is completely absent.
  • Smooth gear shifting, without so-called failures.
  • Excellent oxidation stability allows the oil to be used in vehicles such as Land Cruiser 200, Camry 40, Toyota Alphard and Toyota Vitz.

The most essential thing a Toyota manufacturer cares about while producing vehicles is the quality of the original items. Their major distinctiveness is based on fatty synthetic compounds with good characteristics.

This fluid isn’t mentioned in automobile repair or maintenance guides since it was first released after the end of production for vehicles with traditional transmissions. It’s available at all markets as a genuine alternative to the obsolete D-II.

D-III is a common name for an unapproved derivative of synthetic syncrude oil that has been blended with gasoline and/or alcohol in a proportion not to exceed 4% by volume. User error aside, there is no technical meaning associated with this fluid; however, D-III may be more readily available and less expensive than other ATF under certain circumstances.

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On the one hand, according to the June 1998 service newsletter for the American market, “The ATF Type T-IV is completely replaced by previous T-II and T-III, but not by actual Type T. On the other hand, substitutes for Type T have never been considered in technical documentation for the domestic market; and on original metal cannors with Type T-IV still in Japanese and English, it is stated “It is not suggested that you use instead of Type T.”

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