Honda PSF-S Power Steering Fluid 1L – 08285-P9901YC3 / 08284-99902HE

The genuine Honda PSF-S power steering fluid (part numbers 08285-P9901YC3 and 08284-99902HE) is the OEM hydraulic fluid formulated specifically for Honda hydraulic power steering systems. The 1 litre bottle is usually enough for a complete fluid change in a single vehicle, depending on the procedure used.

Honda PSF-S – genuine power steering fluid

The PSF-S fluid has been developed specifically for Honda power steering pumps and racks. Its viscosity and additive package are matched to the design of Honda hydraulic systems, helping to reduce pump noise, ensure smooth steering feel and protect internal components from premature wear.

• Genuine Honda product – factory power steering fluid for many Honda models.
• Part numbers: 08284-99902HE / 08285-P9901YC3 – different packaging codes of the same PSF-S fluid type.
• Volume: 1 litre – typically enough for a standard power steering fluid change.
• Formulated for Honda systems – correct viscosity and anti-wear additives for Honda pumps and steering racks.

Applications – where to use Honda PSF-S

Honda PSF-S power steering fluid is used in many Honda models with a hydraulic power steering system, including selected versions of Civic, Accord, CR-V, Jazz, FR-V and other models, depending on model year and engine version.

Some newer Hondas use electric power steering (EPS) and do not require hydraulic fluid. Always check the owner’s manual or parts catalogue, or verify by VIN, to confirm whether your vehicle uses PSF-S fluid.

Why use genuine Honda PSF-S fluid?

• Correct compatibility – viscosity and additives matched to Honda pumps and racks.
• Reduced risk of noise and stiffness – the right fluid helps minimise pump whine and uneven steering assistance.
• Protection of system components – proper lubrication and wear protection for seals, pump internals and the steering rack.
• No risk of seal incompatibility – universal ATF or generic fluids can accelerate seal ageing and cause leaks.

Using fluids other than the recommended Honda PSF-S can, over time, lead to increased noise, worse steering feel or premature wear of the pump and steering rack.

When should you replace power steering fluid?

Although some manuals treat power steering fluid as “lifetime”, in practice it is advisable to replace it every few years or around 60,000–80,000 km, especially if:

• the fluid has turned dark or smells burnt,
• the pump becomes noisy when the engine is warm,
• the steering feels heavier or inconsistent.

In such cases, flushing the system and refilling with fresh genuine PSF-S fluid is a simple and relatively inexpensive way to improve steering performance and protect the pump from damage.

FAQ – Honda PSF-S power steering fluid 08284-99902HE / 08285-P9901YC3

Q: Can I replace PSF-S with standard ATF?
A: It is not recommended. Honda power steering systems are designed for PSF-type fluid. Using generic ATF or universal fluid may affect pump operation and seal life.

Q: Are 08284-99902HE and 08285-P9901YC3 the same type of fluid?
A: Yes. These are packaging codes for the same Honda PSF-S power steering fluid.

Q: Is 1 litre enough for a fluid change?
A: Most Honda hydraulic systems hold around 0.7–1.0 litre of fluid. For a standard drain-and-refill, one 1L bottle is usually sufficient, but the exact procedure should be confirmed with a mechanic.