SeaStar Marine Hydraulic Steering Fluid Two-Pack 1 qt (64 oz) — Corrosion Protection, Low-Foam

SeaStar Steering Fluid is a marine-grade hydraulic fluid sold as a two-pack of 32 oz quarts formulated to protect steering components and maintain smooth helm operation.

Designed for use in outboard and inboard hydraulic steering systems, this SeaStar two-pack supplies 64 ounces of fluid to refill or top up your boat's hydraulic reservoir. The formula focuses on preventing internal corrosion, minimizing foam and air entrainment, and preserving seals and hoses exposed to saltwater environments. Each quarter-sized bottle is ready to pour and compatible with SeaStar and many other marine hydraulic systems — helping you keep predictable steering response while underway.

How will this fluid improve steering feel and responsiveness?

Using a purpose-formulated marine hydraulic fluid reduces aeration and wear, which helps the helm remain steady and predictable. Regular replacement or topping up maintains consistent pressure and reduces jerky or spongy steering sensations.

• Low-foaming formula improves pressure transfer in the cylinder.
• Stable viscosity across operating temperatures for consistent feel.
• Helps preserve pump and ram surfaces for longer service life.

Is this SeaStar fluid safe for my boat’s seals and hoses?

The fluid is engineered for marine hydraulic systems, formulated to be compatible with common seal and hose materials used in steering components. Proper fluid selection and periodic inspection of seals and lines will reduce the chance of leaks or premature aging.

• Seal-friendly additives help avoid swelling or hardening of elastomers.
• Designed for use with SeaStar hydraulic steering systems and many other brands.
• Regular maintenance checks recommended to catch wear or leaks early.

How should I change or top up the steering fluid?

Top up when the reservoir level drops or follow your boat manufacturer’s service interval for a full fluid change. Always operate the helm slowly during fill to purge trapped air and ensure an even fill without aeration.

• Park the boat level and shut off the engine before opening the reservoir.
• Turn the wheel slowly back and forth while adding fluid to remove air pockets.
• Dispose of used fluid responsibly following local environmental regulations.

How does the two-pack format benefit boat owners?

Receiving two 32 oz quarts gives you enough fluid for a full refill on many small to medium boats and provides a spare bottle for future top-ups. The extra bottle is convenient to keep in the toolbox or onboard spares locker.

• 64 ounces total gives flexibility for complete flushes or multiple top-ups.
• Dual-bottle packaging reduces the chance of running low mid-season.
• Compact bottles are easy to store on board or in the garage.

Who is this for: SeaStar Steering Fluid (1 Quart Two-Pack) is intended for recreational boat owners, marine technicians, and dockside maintenance crews who maintain hydraulic steering systems on small to midsize boats. It’s suitable for anyone looking to prevent internal corrosion, reduce foam and air in steering systems, and keep helm performance consistent in freshwater and saltwater environments. If you maintain hydraulic steering on your vessel and want a ready-to-use, seal-compatible fluid with a spare bottle on hand, this two-pack is a practical option.