By Walt Silveira, director of automotive products, lubricants, ConocoPhillips Company, Kendall, Phillips 66, 76 and Conoco brands.

The new DEXRON-VI specification handed down from General Motors has created a lot of industry buzz and some uncertainty. The following are some of the most frequently asked questions and our answers to help prepare you for the change.

Q: What is the history behind the new DEXRON-VI transmission fluid?

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. It was developed specifically to accommodate GM’s new 6L80 six-speed automatic transmission, which places greater demands on fluid performance because of direct contact between the clutches. Ongoing changes in transmission designs such as clutch operation, increased torque ratings, reduced sump volumes and higher fluid turnover rates require higher quality fluids to ensure consistent shift performance and longer service intervals.

Q: What are the advantages of the new DEXRON-VI formulation?

A: The new DEXRON-VI fluid is a significant improvement in comparison to DEXRON-III (H) fluids. Fluid life is significantly longer due to improvements in oxidation stability, friction durability, shear stability and foam resistance over current DEXRON-III fluids.

Q: What will happen to DEXRON-III H licenses?

A: All DEXRON-III H licenses will expire at the end of 2006, and GM owner’s manuals for new vehicles will recommend only DEXRON-VI for automatic transmission fluid. DEXRON-VI fluids are back-
serviceable for 2005 and prior model-year vehicles where DEXRON, DEXRON-II or DEXRON-III fluids are specified. They are not intended for Continuously Variable Transmissions (CVT), which require a separate fluid covered by the DEX-CVT specification.

You May Also Like

Assault on Batteries

Even EV batteries aren’t immune to the effects of extreme winter weather.

EV Batteries

This winter, extreme weather patterns have been disrupting daily routines nationwide. Flooding, snowfall and subzero temperatures all have taken a toll on our roadways and vehicles, leaving many stranded or unable to leave their homes. For those who can make it out to the streets, driving conditions can be hazardous. Having a reliable, fully charged battery is critical during these weather events.

Why Do Spark Plugs Get Dirty?

Being able to answer this question can help prevent them from failing prematurely.

Spark Plugs
All Aboard the CAN Bus

With the proliferation of computer electronics, there were just too many sensors and wires.

The Evolution of Automotive Fuel Systems

The frequency of changes has increased in recent decades.

Fuel Systems
When Springs Break

Unfortunately, the kind of spring break that leaves ‘road earrings’ isn’t a desirable getaway.

Broken Springs

Other Posts

Customer Service: How It’s Done

Customer service should be your number one priority, and it all starts with the greeting.

Tool Intel: Why Are There So Many Screwdrivers?

Screwdrivers come in many shapes and sizes, and they are not created equal.

Overview of the Clutch System

There are three main components involved: the flywheel, friction disc and pressure plate.

Clutch System
Understanding the Customer Lifecycle

Knowing the most effective ways to connect with each customer type helps create repeat business and build your brand.

Customer Lifecycle