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In many cases, yes, Dexron 3 can be mixed with Dexron 6. Since Dexron 6 is backwards compatible, you can use it in Dexron 3 applications. 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. The main difference between Dexron 3 and Dexron 6 is that Dexron 6 is a synthetic fluid and Dexron 3 is not. Because General Motors no longer licenses Dexron 3, Dex/Merc was developed by aftermarket transmission fluid manufacturers to meet Dexron 3 standards What Is The Difference Between Dexron 3 and Dexron 6? There is no significant difference between Dexron 3 and modern Dex/Merc transmission fluid. Learn More What Is The Difference Between Dexron 3 and Dex/Merc? Because of this, the two are considered interchangeable which is why aftermarket fluid manufacturers developed Dex/Merc What Is The Difference Between Dexron III and Mercon V?ĭexron III and Mercon V are similar types of transmission fluids with almost the same specifications. What Year Did Dexron 3 Come Out?ĭexron 3 transmission fluid was introduced in 1994 as Dexron III (F) and was used until Dex 6 was released in 2006. What Transmission Fluid Replaced Dexron 3?ĭexron III was replaced by Dexron VI (Dex 6) in 2006. Many people will use their local auto parts store’s house brand labeled Dexron 3 without any issue. It’s often recommended to use a brand name Dexron 3 such as Castrol, Valvoline, etc., but as long as the fluid meets specifications, it’s fine to use. All Dex 3 or Dex / Merc transmission fluid uses the same standards, so is is consistent from brand to brand.
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The best Dexron 3 transmission fluid is highly subjective, especially now. Dexron III(H): Released in 2003 – redesigned with an additive package with an upgraded friction modifier which allowed for longer fluid life and less frequent maintenance intervals.ĭexron 3 Transmission Fluid Questions Is Dexron 3 Discontinued?ĭexron 3 is not discontinued, but is now labeled as Dex/Merc.Dex 3 (G) is suitable for power steering systems and other hydraulic systems. Dexron III(G): Released in 1998 – designed as a “synthetic blend” and addressed previous shortcomings of Dexron 3(F) fluid.Dexron III(F): Released in 1994 – designed for better friction stability, more high temp oxidation stability, and better material compatibility.Throughout the mid 1990s to early 2000s, Dexron 3 is a General Motors (GM) based transmission fluid that was used in many applications, and today is readily available as Dexron III / Mercon (Dex/Merc).ĭuring its standalone run as Dexron 3, there were a few variations of the fluid such as: Dexron 3 transmission fluid is one of the most commonly used transmission fluids in recent history.
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