Purpose and Specifications

MA PROFESSIONAL 20-A78 is a full synthetic power steering fluid designed for hydraulic power steering systems across multiple vehicle brands. This 1-liter bottle meets demanding OEM specifications including GM Dexron II D, Mercon, MAN 339 Type Z1 and V1, ZF TE-ML series (03D, 04D, 11A, 17C), VOITH TURBO H55.6335.xx, and Allison C4 standards.

The fluid maintains consistent performance across a wide operating temperature range, typically from -40°C to +100°C, ensuring smooth steering response in both cold winters and hot summers. Its full synthetic formulation provides superior protection against wear, oxidation, and corrosion compared to conventional fluids, extending the life of your power steering pump and components.

When to Use / Replace?

Replacement Interval: Most manufacturers recommend a power steering fluid change every 80,000 to 160,000 kilometers (50,000 to 100,000 miles), or every 3 to 5 years, whichever comes first. However, always consult your vehicle's service manual for exact intervals.

Signs You Need a Fluid Change:

• Steering feels stiff or requires more effort than normal
• Fluid appears dark brown or black (fresh fluid is typically amber or light red)
• Unusual noises when turning the steering wheel
• Visible leaks under the vehicle near the steering system

Shelf Life: Unopened bottles maintain quality for approximately 3 to 5 years when stored in a cool, dry location away from direct sunlight.

Frequently Asked Questions

Q: Can I mix this fluid with my current power steering fluid?
A: Mixing different power steering fluids is generally not recommended. Always drain the old fluid completely before refilling with MA PROFESSIONAL 20-A78 to avoid compatibility issues and potential system damage.

Q: Is this fluid suitable for all vehicles?
A: This fluid meets multiple OEM specifications, making it compatible with most European and American vehicles including BMW, Ford, Opel, Jaguar, and others. However, always verify your vehicle's specific requirement in the owner's manual before use.

Q: How do I check my power steering fluid level?
A: Most vehicles have a transparent power steering reservoir under the hood. Check the level when the engine is cold and the steering is centered. Top up to the maximum line if needed, but do not overfill.