Dexron 6 Transmission Fluid - Transmission Cooler Guide (2024)

  • Backward compatible with previous Dexron automatic transmission fluids and can be used as a much-improved replacement for older vehicles/transmissions originally using previous Dexron fluids
  • Improved performance over previous Dexron fluids in: friction durability, viscosity stability, aeration and foam control, and oxidation resistance
  • Potential to enable improved fuel economy and longer transmission life
  • Provides for extended drain intervals. Provides consistent shift performance, even in extreme conditions.

$39.98 ($0.31 / Fl Oz) -$6.2 $33.78 ($0.26 / Fl Oz)

Dexron 6 Transmission Fluid - Transmission Cooler Guide (2)

Released in 2005 for the 2006 model year, an updated version of Dexron transmission fluid, Dexron 6 was developed in a joint venture between General Motors and Ford upon the release of a more modern 6 speed automatic transmission. For GM, this was part of the release of the new 6L80e transmission.

Highlighted Features

  • Backward compatible with previous Dexron automatic transmission fluids and can be used as a much-improved replacement for older vehicles/transmissions originally using previous Dexron fluids
  • Improved performance over previous Dexron fluids in: friction durability, viscosity stability, aeration and foam control, and oxidation resistance
  • Potential to enable improved fuel economy and longer transmission life
  • Provides for extended drain intervals. Provides consistent shift performance, even in extreme conditions.

Dexron 6 Transmission Fluid Questions

Is Dexron 6 Discontinued?

Dexron 6 is not discontinued and it still readily available and easy to get.

What Is The Best Dexron 6?

In our opinion, the best Dexron 6 transmission fluid is AC Delco. Since all Ac Delco is factory specified and is still supported by General Motors, it is the most recommended Dexron 6 transmission fluid.

If you cannot find Ac Delco Dex VI, there are plenty of aftermarket fluid manufactures who offer Dexron 6 that meet factory specifications. If you are in a pinch and can’t wait for factory recommended Ac Delco Dex 6, you can always go to your local auto parts store to find a suitable aftermarket replacement.

What Transmission Fluid Replaced Dexron 6?

Dexron VI is still very common in many applications, General Motors has updated the specifications since its inception with Dexron ULV and Dexron HP.

What Year Did Dexron 6 Come Out?

Dexron 6 transmission fluid was introduced in 2005 as Dexron VI and replaced its predecessor, Dexron 3. GM started to use Dexron 6 in factory vehicles starting in the 2006 model year.

How Much Dexron 6 Do I Need?

The amount of Dexron 6 transmission fluid needed for your application varies, so it is best to consult your owner’s manual. In most cases, reading the transmission dipstick will give you and idea how much fluid you need when you do routine maintenance.

What Temperature Does Dexron 6 Fail At?

Like all transmission fluids, Dexron 6 is best when it’s temperature is between 160-200 degrees F. This common range is best for longevity of both your transmission fluid and transmission itself. The below transmission fluid chart shows how long transmissions last when fluid reaches various temperatures.

Dexron 6 Transmission Fluid - Transmission Cooler Guide (3)

What Is The Difference Between Dexron 3 and Dexron 6?

The main difference between Dexron 6 and Dexron 3 is that Dexron 6 is classified as a synthetic fluid and Dexron 3 is not. Dexron 6 has more up to date fluid properties which allows for a longer fluid life and is much better at dealing with higher temperatures. Since Dexron 6 is backwards compatible, you can use it in Dexron 3 applications.

Dexron 6 has a lower fluid viscosity than Dexron 3, but can be used in Dexron 3 applications.

Can Dexron 3 Be Mixed With Dexron 6?

In many cases, yes, Dexron 6 can be mixed with Dexron 3. Since Dexron 3 is used in older applications and Dexron 6 is “backwards compatible” GM suggests that you can use Dexron 6 in most Dexron 3 applications.

Depending on your situation, it would be best to use one or the other in your transmission. However, if your transmission’s recommended fluid is Dexron 6, you cannot use Dexron 3 in it.

What Happens If You Put Dexron 6 In A Dexron 3 Transmission?

If you put Dexron 6 in a transmission that calls for Dexron 3, nothing serious will happen. While Dexron 6 is backwards compatible with Dexron 3 transmission fluid, it’s often recommended to use one or the other for the best results.

What Color Is Dexron 6?

Dexron 6 transmission fluid is a bright red when new and should be a similar color if your transmission is maintained properly. The below transmission fluid color chart shows common transmission fluid colors depending on use and give you an idea of what to look for over time.

Dexron 6 Transmission Fluid - Transmission Cooler Guide (4)

Can Dexron 6 Be Used In All Automatic Transmissions?

Dexron 6 is a common transmission fluid, but no, it cannot be used in all automatic transmissions. It’s always best to consult your vehicle’s owners manual to learn what transmission fluid is recommended for your application.

Can Dexron 6 Be Used As Power Steering Fluid?

Yes, it is common for transmission fluids such as Dexron 6 to be used as power steering fluid. The two fluids are similar and both work in power steering systems.

Where Can I Get Dexron 6?

Dexron 6 is easy to find both online and at local auto parts stores. Because of this, you can quickly get as much as you need.

How Much Does Dexron 6 Cost?

With Dexron 6 being easy to get and readily available both online and at auto part stores, the cost is not high. While Dexron 6 might cost a little more than Dexron 3, it’s not that significant of an increase.

For the cost, if you have an application that calls for Dex III but will allow for Dex VI, use the slightly more costly Dex VI since it’s a more durable transmission fluid and can handle more abuse and offers a longer maintenance interval.

  • Backward compatible with previous Dexron automatic transmission fluids and can be used as a much-improved replacement for older vehicles/transmissions originally using previous Dexron fluids
  • Improved performance over previous Dexron fluids in: friction durability, viscosity stability, aeration and foam control, and oxidation resistance
  • Potential to enable improved fuel economy and longer transmission life
  • Provides for extended drain intervals. Provides consistent shift performance, even in extreme conditions.

$39.98 ($0.31 / Fl Oz) -$6.2 $33.78 ($0.26 / Fl Oz)

Dexron 6 Transmission Fluid - Transmission Cooler Guide (6)

DEXRON-VI/MERCON LV ATF is a full-synthetic transmission fluid formulated with advanced additive technology to meet and exceed the requirements of the General Motors DEXRON-VI specification.

It is officially licensed and approved by GM and is fully back-serviceable and can be used wherever DEXRON-II and/or DEXRON-III are recommended. Recommended for use in the following applications: DEXRON-VI, DEXRON-III, DEXRON-II, MERCON LV and Allison C-4. Product

Features:

Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions. Enhanced anti-shudder protection for smooth shifting and maximum power transfer. Developed with anti-wear technology to help improve transmission durability.

Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures

Dexron 6 Transmission Fluid - Transmission Cooler Guide (2024)

FAQs

What is Dexron VI compatible with? ›

CAM2 DEXRON®-VI Multi-Vehicle Full Synthetic ATF is recommended for use in: GM DEXRON®-VI, DEXRON® III/III(H)/IIE, DEXRON® II, Ford MERCON® LV, SP, V, Hyundai/Kia SP-II/III/IV, Toyota WS, T-III, T-IV Mercedes Benz®, Honda® Z-1, Allison®, and Nissan® Matic Fluids.

What is special about Dexron VI? ›

Dexron VI is a high-performance Automatic Transmission Fluid (ATF) designed to provide superior protection and performance for modern automatic transmissions. It offers enhanced oxidation stability, improved wear protection, and better low-temperature performance compared to other transmission fluids.

Can you use Dexron VI in older vehicles? ›

The reality is that Dex VI is best only for newer vehicles. Speed tells us that he experimented with using Dexron VI in an older vehicle originally intended for Dexron III and found that the converter's stall speed increased slightly which is understandable given Dexron VI's lighter viscosity.

How many quarts of ATF should flow through the cooler? ›

Performing a transmission oil cooling system flow test and flush will use between 4.7-7.5 L (5-8 qts) of DEXRON®VI transmission fluid. The amount of transmission fluid (ATF), (DEXRON®VI) (fluid), that is to be charged for the flush portion of the repair should not exceed the allowable charge for 7.5 L (2 gal) of fluid.

Is Dexron 6 the same as Mercon LV? ›

Valvoline Dexron VI/Mercon LV ATF is the full-synthetic automatic transmission fluid that has been uniquely engineered to meet and exceed the requirements of the General Motors Dexron VI specification and is officially licensed and approved by GM.

What happens if you use Dexron VI instead of III? ›

The Dexron VI is backward compatible with any application that calls for D-II or III, but it does add considerable cost to the fluid change when it is not required.

Can you mix Dexron VI with ATF 4? ›

Valvoline MaxLife ATF transmission fluid is 100 percent compatible with the DEXRON VI for mixing or flushing a system.

Is Dexron 6 backwards compatible? ›

This fluid technology is designed to replace and supersede previous generation specifications from GM and Ford such as DEXRON III and MERCON/ MERCON V. General Motors officially states that DEXRON®-VI approved fluids are backwards compatible with and should replace all previous generation DEXRON fluids in service.

What's the difference between ATF and DEXRON transmission fluid? ›

Dexron is the trade name for a group of technical specifications for automatic transmission fluid (ATF) created by General Motors (GM). The name was first registered as a trademark and later evolved into a brand of GM.

Does DEXRON 6 replace DEXRON 2? ›

Dexron VI replaced Dexron II and III, and can be used in General Motors domestically built or import transmissions that specified Dexron II or Dexron III. Dexron VI is a low viscosity transmission fluid and should also be used with the full synthetic low viscosity transmission fluid.

What cars use dexron VI? ›

Multi-Vehicle ATF suitable for use in most GM, Ford, Toyota, Honda, and other high performance vehicles. *Not for used in extended drain heavy duty diesel, Type F, CVT or DCT applications.

What is the best ATF for older cars? ›

AUTOMAT ATF-1A is recommended for older vehicles with 4-5 speed automatic transmission (AT) requiring medium to conventional viscosity ATF.

What year did GM switch to Dexron 6? ›

A: GM introduced DEXRON-VI in April 2005 as the next generation factory fill transmission fluid for 2006 model-year trucks and cars equipped with Hydra-Matic transmissions.

Should I flush transmission fluid on old car? ›

While you don't need a transmission flush for your vehicle too frequently, you shouldn't write off this critical car maintenance task. In general, most vehicles need a transmission fluid change every 30,000 miles and flush every 2 years.

Can I flush transmission cooler? ›

The only way to clean a transmission cooler is to use the only transmission cooler flushing machine that can get rid of 99.9999% of debris and contaminants in the cooler. No other mahcine besides Hot Flush can do this. No one can settle for even 90% clean.

What happens if you put too much ATF fluid? ›

Transmission fluid will become foamy if there is too much fluid. Excessive fluid prohibits proper lubrication and cooling and slows the rotating crankshaft, similar to the effect of running through water.

What fluid runs through transmission cooler lines? ›

All transmissions have a cooling line that runs to the radiator. A separate fluid passage circulates the transmission fluid through a portion of the radiator to cool the fluid.

Can you use Dexron VI in Ford transmission? ›

These were uniquely considered when we developed Valvoline Dexron VI/Mercon LV ATF. It's formulated to exceed the specifications of General Motors and Ford that require Dexron-VI and Mercon LV transmission fluid.

What does LV mean in transmission fluid? ›

Mercon LV, LV is for low viscosity, this fluid is used in later Ford and Mercury vehicles. It usually is for later models from 2008 and newer. It is an synthetic oil. Mercon V is for older Ford models and is also synthetic.

What is Dexron VI? ›

Mobil™ DEXRON-VI ATF is premium full synthetic automatic transmission fluid, formulated for use in a wide variety of vehicles (multi-vehicle), including American, Japanese, Korean and European standard in automatic transmission and power shift transmissions.

What is the best transmission fluid? ›

AMSOIL Signature Series Synthetic ATF excels at fighting heat and protecting gears and clutch plates, as demonstrated in severe testing. We believe AMSOIL Signature Series Synthetic Automatic Transmission Fluid is the best transmission fluid available.

Can Dexron 3 and 6 be mixed? ›

You can mix Dexron III and Dexron VI no problem. If you like, you can take out 3 quarts or so out the dipstick tube and replenish it a couple of times (4 times should do considering ATF capacity) then drop the pan, replace the filter and refill with another 5 quarts.

What is the difference between Dexron 3 and Dexron 6 transmission fluid? ›

Dextron III was discontinued and Dextron VI replaced it. Dexton VI is an improved, semi-synthetic blend. Dextron VI is backward compatible, but Dextron III is not forward compatable. GM no longer licenses the Dextron III formula.

Can I use Dexron 6 in place of Dexron 2? ›

Dexron VI replaced Dexron II and III, and can be used in General Motors domestically built or import transmissions that specified Dexron II or Dexron III.

Is Type A transmission fluid the same as Dexron? ›

There are many types of ATF that meet individual specs for different transmissions. Dexron is one of those types. It replaced Type A ATF back in the 50's. It has been improved many times since then, with the latest version being Dexron VI.

Can I use Dexron 6 instead 4? ›

When they started putting lockup TC's in transmissions they had to come up with a different fluid. Originally ATF+, then ATF+2 , then +3, now +4. Do not use Dextron VI in any trans that calls for ATF+4.

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