What is the difference between dexron II and Dexron III automatic transmission fluid?

The improvements in Dexron-III(F) include better friction stability, more high-temperature oxidation stability, and better material compatibility. Dexron-III(F) has the same low-temperature fluidity as Dexron-II(E), for better transmission performance in cold weather.
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Can I use Dexron III instead of Dexron II?

Dexron III supersedes Dexron II. Meaning, it replaced it. Anywhere Dex II is called for, Dex III can be used.
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Is Dexron 2 the same as Dexron 3?

The main difference between Dexron 2 and 3 is that, Dexron 3 is the updated version of Dexron 2 which is formulated with additives and other chemical components to improve the transmission performance. Otherwise, both of them are almost the same type of regular ATF.
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Is Dexron 2 still available?

Dexron, Dexron II, IID, and Dexron IIE—these are the original GM Dexron ATFs and are no longer licensed by the company, having been superseded by Dexron III, which has now itself been superseded by Dexron VI.
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What can I use 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. Dexron VI is a low viscosity transmission fluid and should also be used with the full synthetic low viscosity transmission fluid.
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What is the difference between Dexron-II and Dexron-III?



What is dexron 2 transmission fluid?

The General Motors Dexron-II automatic transmission fluid specification, issued in August 1973, defines physical, chemical, and performance requirements of a new class of fluids developed to meet increasingly severe service in passenger car and commercial automatic transmissions.
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Can you use dexron VI instead of dexron II?

DEXRON-VI is also compatible with any former version of DEXRON for use in automatic transmissions.
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What Colour is dexron 2?

Power steering fluids from Dexron also double up as auto transmission fluids and are red in color.
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Do they still make dexron 3?

All Dexron-III (H) licenses expired permanently at the end of 2011, and GM now supports only Dexron-VI fluids for use in their older automatic transmissions. Aftermarket fluids asserted by their manufacturers to meet Dexron-III(H) and earlier standards continue to be sold under names such as Dex/Merc.
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What is dexron III used for?

ACDelco DEXRON® III (H) is a premium quality automatic transmission fluid intended for use as service-fill for automatic transmissions and vehicle components that use automatic transmission fluid as a lubricant or hydraulic fluid, such as transfer cases, manual transmissions and power steering systems.
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Can Dexron 3 be used as power steering fluid?

It is marked on the bottle not to be used as power steering fluid. DEXRON III/MECRON would be a better choice for cars where the manual specified DEXRON II, which is no longer on sale.
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What is Dexron III transmission fluid?

ATF Dexron-III is a premium automatic transmission fluid specially formulated to meet the needs of today's more compact transmissions, running at higher operating temperatures and with electronic control.
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Is Dex Merc the same as Dexron III?

GM no longer licenses Dexron III. Dex/Merc would be fine. Dexron VI is listed by GM as backward compatible, but is thinner than original Dexron III.
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Can you mix Dexron 2 and 3?

Yes, you can mix them together, as long as you peel one of the “I”s off of the Dextron III bottle before pouring it in…on second thought…you probably don't even need to do that.
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What happens if I use the wrong transmission fluid?

Using the wrong fluid can cause poor lubrication, overheating, and possibly transmission failure. A mechanic might not be able to reverse the damage, even by flushing the transmission. Mistakenly adding motor oil or brake fluid can also destroy your transmission.
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Is Dexron 3 fully synthetic?

Transmission Fluid - Synthetic Oil Type - GM DEXRON III Manufacturers Recommended Fluid - Free Shipping on Orders Over $99 at Summit Racing.
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What color is dexron III automatic transmission fluid?

When the fluid is new, it has a translucent red color. It may be hard to see on the dipstick, but if you wipe it on a clean white rag, it will appear bright to dark pink/red.
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Should I change my transmission fluid if it's brown?

Brown/Dark Brown

Once the transmission fluid turns brown, which is usually at about 30,000 miles, it's time to change it. The brown transmission fluid will become opaque, which means you can't see through it anymore.
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Why is my transmission fluid milky pink?

Contaminated ATF

The transmission's cooler is located in the coolest radiator well after the coolant has flowed through the cooling fins. When a leak forms in this cooler, the two liquids mix, resulting in foamy pink transmission fluid.
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Is Dexron backwards compatible?

Dex VI is ONLY backwards compatible for auto transmissions.
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What is the difference between dexron VI and Dexron III?

Dexron VI is a lot more stable at higher temperatures and lasts longer. It can also be used to top off dexron 3, however, you can't use dexron 3 if you already have dexron 6 originally in your trans, or if it has been flushed with dexron 6.
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Can I use Dexron IV instead of II?

ATF IV and Dexron II are different enough I'd suggest against using it, however all Dexron fluids are backwards compatible, so you could use Dexron III or Dexron VI. If you can get Dexron III you can mix it with the exiting Dexron II in your power steering reservoir without issue.
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Is Dexron 2 fully synthetic?

Quality: Fully Synthetic(3) Mineral(2)
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Can you mix Dex 3 and Dex 6?

Dex 6 is fine to mix with Dex 3. Just do filter and replaced drained fluid.
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What type of fluid does a 4L60E take?

The best Fluid type on 4L60E is any high-quality Dexron 3 or Dexron 6, good for preventing high temp transmission oil.
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