

Nautical Hydraulic Oil
Lucas Oil Nautical Hydraulic Oil is an ISO viscosity grade of 15 (15cSt @40°C), formulated exclusively from synthetic base stocks containing anti-wear and corrosion inhibitors. It will satisfy all the relevant requirements of MIL-H-5606G, providing excellent performance throughout all weather conditions. It does not contain conventional viscosity modifiers; therefore, it will not permanently shear-thin and can be expected to deliver long life performance in marine steering systems. Being so low in viscosity, it provides a very light feel to steering, without hesitation or noise. Lucas Nautical Hydraulic Fluid is also suitable for other marine applications, such as in emergency hydraulic starting systems (hand pump with accumulator) employed in some diesel-powered boats.
Key Benefits
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- Fully synthetic formulation
- Resists oxidation and shear thinning for long fluid life
- Low viscosity delivers improved response in steering
- Much higher flash point than traditional MIL-PRF-5606 fluids for reduced flammability
- Outstanding wear and corrosion prevention performance
Use in marine steering systems, or wherever a premium low-viscosity hydraulic oil is required.










