Which vehicles is this fluid for?

Most Ford, GM and select import vehicles before 2006 that specify Dexron-III or Mercon. It also meets Allison C-4, TES-389 and Caterpillar TO-2.

Can I use it in a modern transmission?

No. Vehicles requiring Dexron-VI, Mercon V, Mercon LV or later specs need a different fluid. Check your owner's manual.

No, it uses a conventional base oil with an additive package for wear protection and shudder resistance.

Does it contain stop leak?

No. It is a plain ATF with no seal-swelling additives.

How much fluid does a change need?

A drain-and-fill typically takes several quarts, so one gallon may not cover a full service. Check your transmission's capacity.

Valvoline DEX/MERC (ATF) Automatic Transmission Fluid

Best price now

$159.99at ValvolineChecked Nov 9

Prices are checked against each store and labelled with when.

Visit Valvoline

Valvoline DEX/MERC (ATF) Automatic Transmission Fluid

Best price now

$159.99at ValvolineChecked Nov 9

Prices are checked against each store and labelled with when.

Visit Valvoline

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Price facts

Last seen at $159.99 at Valvoline on Nov 9.

Our take on the Valvoline DEX/MERC (ATF) Automatic Transmission Fluid

Valvoline DEX/MERC is a conventional automatic transmission fluid built for older vehicles that call for Dexron-III or Mercon. It covers most Ford, GM and select import transmissions from before 2006, plus specs like Allison C-4, TES-389 and Caterpillar TO-2. Its low pour point of -44°F keeps it flowing in cold starts, and it resists thickening and high-temperature breakdown. It suits older cars and light trucks needing a basic, widely compatible fluid rather than a modern synthetic.

Best forOlder Ford and GM vehicles specifying Mercon or Dexron-IIIPre-2006 imports calling for Dexron-IIICold-climate drivers wanting easy cold-start flowOwners doing routine drain-and-fill service

Pros

Covers Dexron-III, Mercon, Allison C-4 and Caterpillar TO-2
Low -44°F pour point for cold starts
Resists thickening and high-temperature breakdown
Smooth, consistent shift performance
No stop leak additives

Cons

Conventional base oil, not synthetic
Not for vehicles requiring Dexron-VI, Mercon V or later specs
Not for CVTs or dual-clutch gearboxes
One-gallon jug only covers partial changes on many transmissions

Valvoline DEX/MERC (ATF) Automatic Transmission Fluid prices at every store

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In stockReturn policy
$159.99Checked Nov 9
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What reviewers say

Owners of older Ford and GM vehicles report smooth shifting and good cold-weather behavior after using it. Some note it is a conventional fluid and not a substitute for newer synthetic specs.

What people mention

Shift qualityPraisedOwners say shifts feel smooth and consistent after a change.
Cold flowPraisedDrivers in cold climates report easy starts and quick engagement.
Spec coverageMixedIt fits many pre-2006 vehicles but not newer Dexron-VI or Mercon V applications.
Base oilCriticisedSome owners prefer synthetic fluid for longer service intervals.

About the Valvoline DEX/MERC (ATF) Automatic Transmission Fluid

Valvoline DEX/MERC ATF is an automatic transmission fluid engineered to meet and exceed the requirements of automatic transmissions in vehicles that specify Dexron-III fluids. It is formulated with premium base stocks and advanced additive technology. Its low-temperature fluidity is beneficial in both electronic and hydraulic controlled transmissions and transaxles.

The fluid provides smooth, consistent shift performance, wear protection and shudder resistance. It resists thickening and high-temperature breakdown. It is suitable for most Ford, GM and select import vehicles before 2006.

It is specifically recommended for Mercon, Dexron-III, Ford M2C138-CJ and M2C166-H, Allison C-4 and TES-389, and Caterpillar TO-2.

Container size: 1 gallon
Packaging: Plastic container
Oil type: Automatic transmission fluid
Fluid type: Mercon
Base oil: Conventional
Color: Red
Specific gravity: 0.843
Pour point: -44
Flash point: 394
Stop leak: Not included
Specifications: Mercon, Dexron-III, Ford M2C138-CJ, Ford M2C166-H, Allison C-4, Allison TES-389, Caterpillar TO-2
Compatibility: Most Ford, GM and select import vehicles before 2006

Specifications

Container size: 1 GallonSource
Base oil: ConventionalSource
Pour point: -44Source
Flash point: 394 -Source

Questions and answers

Which vehicles is this fluid for?: Most Ford, GM and select import vehicles before 2006 that specify Dexron-III or Mercon. It also meets Allison C-4, TES-389 and Caterpillar TO-2.
Can I use it in a modern transmission?: No. Vehicles requiring Dexron-VI, Mercon V, Mercon LV or later specs need a different fluid. Check your owner's manual.
Is it synthetic?: No, it uses a conventional base oil with an additive package for wear protection and shudder resistance.
Does it contain stop leak?: No. It is a plain ATF with no seal-swelling additives.
How much fluid does a change need?: A drain-and-fill typically takes several quarts, so one gallon may not cover a full service. Check your transmission's capacity.
Where is the Valvoline DEX/MERC (ATF) Automatic Transmission Fluid cheapest?: At Valvoline, for $159.99, as of our latest check.