D-Matic III H
A high performance synthetic automatic transmission fluid for passenger cars, light trucks and SUVs. Why choose this fluid
- GM Dexron® III H (backward compatible with Dexron®, Dexron® II and Dexron® III G)
- Ford Mercon®
Why choose D-Matic III H
Duckhams D-Matic III H is a high performance synthetic automatic transmission fluid for use in passenger cars, light trucks and SUV automatic gearboxes, requiring automatic transmission fluids meeting General Motors Dexron® III H or Ford Mercon® performance levels. Duckhams D-Matic III H has been carefully formulated using high quality virgin synthetic base oil and shear stable components to meet the lubrication and friction requirements whilst minimising the degradation of the oil and maintaining the condition of automatic transmission system, minimising running costs and ensuring a smooth comfortable driving experience. Suitable for use in automatic transmissions, or power steering units, requiring a fluid meeting General Motors Dexron®, Dexron® II, Dexron® III or Ford Mercon® performance levels. Not suitable for use where General Motors Dexron® VI or Ford Type F, Mercon® V or Mercon® SP fluids are required, or where a Continuously Variable Transmission (CVT) fluid is specified. Always refer to your owner’s handbook when selecting oil for your vehicle.
- Excellent corrosion and anti-wear protection reduces wear and corrosion within transmission systems, extending the operating life of components and the system.
- Improved oxidative and thermal stability protects against harmful deposits, sludges and varnish, keeping the transmission clean and maintaining condition and performance, extending the life of the transmission system. Also prevents oil thickening, prolonging the life of the transmission fluid.
- Formulated using friction modifiers carefully selected to ensure smooth and quiet operation of automatic transmissions, preventing shuddering during gear shifts and maintaining optimum power transfer and drive performance.
- Formulated using shear stable components, and friction modifiers, to deliver consistent friction characteristics throughout the service life of the oil.
- High viscosity index formulation gives a stable viscosity over a wide range of temperatures, giving excellent low temperature flow, and high temperature lubrication, protecting the transmission system both at low temperature start up, and during high temperature operations.
Typical physical characteristics
| Property | Unit | Typical Value |
|---|---|---|
| Colour | Red | |
| Viscosity @ 100°C | cSt | 7.08 |
| Viscosity @ 40°C | cSt | 30.59 |
| Viscosity Index | 206 | |
| Flash Point (Closed Cup) | °C | 212 |
| Pour Point | °C | -48 |
| Density @ 15°C | kg/L | 0.8357 |
Typical physical characteristics are provided as an indication of properties based on current production data only, and should not be interpreted as a specification.
Manufacturer standards
The manufacturer standards Duckhams D-Matic III H is recommended for, grouped by the marque that sets them rather than by the code.
Ford
- Mercon®
General Motors
- GM Dexron® III H (backward compatible with Dexron®, Dexron® II and Dexron® III G)



