The formulation of transmission fluids keeps changing and updating with the advancement of vehicles and their mechanisms. Although ATF+4 managed to keep pace with the upgrade, Dexron 3 stopped in the mid (with H) allowing different versions (like Dexron HP or ULV) to continue. But that’s not what makes them different. There’s one vital point.
So, what is the difference between Dexron 3 and ATF+4? Dexron 3 is a conventional auto fluid made for older transmissions of Chevy and Ford while ATF+4 is synthetic and compatible with older and modern models of Chrysler, Ram, Jeep, and Dodge.
But wait, there are more dissimilarities that we found out.
What's Inside:
Dexron 3 Vs. ATF+4
Both are made for specific mechanisms that make one different from the other. However, DEX 3 kind of has outdated ingredients whereas ATF 4 comes with an updated formula.
Below, you can read more about ATF 4 vs Dexron III.
Dexron 3
Dexron comes with a series of ATFs that are compatible with transmissions of Chevrolet and General Motors. Although the original one (DEX B) was introduced in 1967, the first version of DEX 3 (F) appeared in 1993 while the last version, DEX 3 (H) in 2003.
When it comes to Dexron 3, it’s a standard conventional fluid made of Group 2 base oil and special additives. It acts as a hydraulic fluid and lubricant for different mechanisms like transmissions, manual gearboxes, transfer cases, and power steering systems.
You can use it in older Chevy models like GM transmissions pre-2005, Ford transmissions introduced between 1983 and 1996, and the ones that require DEX 2. However, the newer the automotive models, the later the fluid versions that are required.
For instance, Electric Vehicle (EV), Hybrid (HEV), Newer 6, 8, 9, and 10-speed transmissions would need particular fluids to work properly. So to make the fluid compatible with modern transmissions, its specifications have been upgraded over the years.
ATF+4
ATF+4 is created to meet the requirements of Fiat Chrysler auto transmissions (FCA). It can be used in transmissions of Ram, Jeep, and Dodge models too. The fluid was released in 1998 by Chrysler and was stated to be officially licensed.
It’s fully synthetic and contains Group 3 base oil with a variety of additive packages. ATF+4 acts as both hydraulic fluid and lubricant for the transmission system, hydrodynamic converters, and steering systems. However, the formulations have changed over the years.
While the original version was suitable for Chrysler mini-van transmissions, the revised ones were compatible with the latest 6-speed transmissions. ATF+4 also has specific additives included for particular transmissions.
It might work for the mechanisms that require ATF+, ATF+2, and ATF+3 fluids. You can also use it in most of the older and some of the newer models of the stated manufacturers. All you need is to check their compatibility.
You can also read: All About Power Steering Fluid.
Comparison Chart Of Dexron 3 And ATF+4
| Factors | Dexron 3 | ATF+4 |
| Type | Standard conventional ATF | Fully synthetic ATF |
| Introduced in | 1993 | 1998 |
| Brand Compatibility | GM transmissions pre-2005, Ford transmissions from 1983 and 1996 | Chrysler, Ram, Jeep, and Dodge |
| Suitable for | Older transmissions | Most of the older and some newer transmissions |
| Made of | Group 2 base oil and additives | Group 3 base oil and additives |
| Uses | Transmissions, gearboxes, transfer cases, and power steering systems. | Transmissions, hydrodynamic converters, and steering systems |
Frequently Asked Questions
- Can You Mix Dexron 3 With ATF+4?
Yes, you can mix Dexron 3 with ATF+4 as long as they meet the specifications of the transmissions. Since one is conventional and the other is synthetic, you’ll end up with a synthetic blend. It’s a safe mixture if you’re using the vehicle at a medium level.
In case the system is operated in severe conditions, the blend will fail to function properly. Hence, we wouldn’t suggest mixing the types as it won’t maintain the quality. Not just that, the worst thing that can happen is the slip of torque converter clutch and transmission wear.
- Can I Use Dexron Instead Of ATF+4?
No, using Dexron instead of ATF+4 can degrade your transmission system. Most of the Dexron fluids are outdated whereas ATF+4 comes with upgrade formulas.
The system that’s compatible with ATF+4 would need certain alternatives. For instance, AMSOIL Multi-Vehicle ATF can be a suitable option since the quality and grade are similar.
Meanwhile, Dexron fluids are for older engines and you can use them with the ones that call for them.
- Is Dexron 3 The Same As ATF+4?
No, Dexron 3 and ATF+4 have different formations made of different contents. They are also designed for particular transmissions of certain brands. The only similarity is that they are transmission fluid that also acts as a lubricant.
Final Words
The key difference between Dexron 3 and ATF+4 is the use of contents and additives in them. Also the vehicles they are formulated to be used in play a vital role.
Although you can use ATF+4 instead of Dexron fluids, the opposite is a big no. It’s because ATF+4 is a high-quality fluid and can give you advanced benefits. Meanwhile, Dexron 3 is just for older models of Chevy or Ford and works to perform average.
However, we suggest you always check the specifications of vehicles and transmissions and get the fluid accordingly.
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