HYDRAULICS

HOME / PRODUCTS / HYDRAULICS / Nautical Hydraulic Oil

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

    • 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
 

Packaging

Product # Size Weight SDS
#10136 5 Gallon Pail (1 Pail) 40 lbs Safety Data Sheet
#10057 55 Gallon Drum (1 Drum) 440 lbs Safety Data Sheet
#10241 330 Gallon Tote (Per gallon) 2,500 lbs Safety Data Sheet
Use in marine steering systems, or wherever a premium low-viscosity hydraulic oil is required.

HEAR IT FROM OUR CUSTOMERS

When we got out of the car we noticed right away that almost all of the noise was gone!

My son's 2005 VW GTI with the 4 cylinder turbo and 127K miles on it sounded like there hammers inside the engine. The car was close to needing a oil change so I bought a quart of High Mileage Oil Stabilizer. He changed the oil adding the stabilizer started it up and we took it for about a 8 mile drive. When we got out of the car we noticed right away that almost all of the noise was gone! He has a 200 mile drive back to school in a few days and I'm willing to bet all of the noise will be gone by the time he gets back to campus. Thank you for a great product!
David M., Lago Vista, TX

I am amazed at what it has done to my engine noise.

I own a 2008 Ford F`50 with a 5.4 engine and 137,000 miles. Over the past year my engine developed the Ford death rattle. It's known as cam phaser problems. This was when pulling a trailer at low idle. I decided to try out Lucas High Mileage Oil Stabilizer additive.T his was 12,000 miles ago, and I am amazed at what it has done to my engine noise. It's been gone since a week after I started using it. I told my son in law about it, as his Honda engine is using oil and fouling plugs. He is amazed at how it has helped his engine trouble and he has not fouled a plug since he started adding it.
I also have added it to my old Briggs and Stratton 5 hp engine. It smokes really bad, since adding it has cut it down 80 percent. It has made believers out of us. Thanks
Jim T., Grand Rapids, MI

Lucas hi-mileage stabilizer IMMEDIATELY quieted engine

2003 F150 5.4L Triton 3-valve. Timing chain, guides and cover had disintegrated at about 280,000 and constant oil leakage. Put new chain, guides, oil strainer, pick-up tube etc and drove to 345,000 using 20w50 and losing about 2 quarts a month. Noisy upon start-up which I understand is typical for these Tritons plus lifters made constant noise. Was about to install a new/used motor when I figured what the heck try a bottle of Lucas hi-mileage stabilizer. IMMEDIATELY quieted engine and after adding another bottle a week later, engine is running QUIETLY!!! leaks less too. Have installed new coil packs and I think this 5.4 might just make it to 500,000!! I also added 1qt to the tranny...shifts smoother.

I added this to the gas and was amazed… it stopped making the sound that I thought was a rod bearing.

My truck engine has over 200,000 miles and a knock started and I thought it was a rod bearing. I was reading the label on the product Complete Engine Treatment and the words, (stops engine knocks.) I added this to the gas and was amazed, and still am, it stopped making the sound that I thought was a rod bearing. I do have to add the treatment to each fill up, but it does work.
Jack

I Added The Lucas Oil Stabilizer and There Was an Immediate Result.

I have always had a loud top end on my Harley Sportster. And ever since I started using this oil [Lucas 20w50 Motorcycle Oil], my engine is quieter and have noticed much better my motorcycle is running overall. I added the Lucas oil stabilizer yesterday and there was an immediate result. I LOVE Lucas products and as a motorcycle mechanic for Harley Davidson, I tell everyone I know with Harley’s to use this oil. -
Megan S., Orlando, FL

RELATED NEWS

Lucas Oil Named a 2026 Community Impact Winner by Culture of Good, Inc.

May 27, 2026

Lucas Oil Named a 2026 Community Impact Winner by Culture of Good, Inc.
Lucas Oil Expands RCR Partnership in 2026, Returns as Primary Sponsor of Kyle Busch’s No. 8 Chevrolet

May 11, 2026

Lucas Oil Expands RCR Partnership in 2026, Returns as Primary Sponsor of Kyle Busch’s No. 8 Chevrolet
CHASE MATTHEW + LUCAS OIL EXTEND PARTNERSHIP THROUGH 2027, POWERING GLOBAL EXPANSION

April 1, 2026

CHASE MATTHEW + LUCAS OIL EXTEND PARTNERSHIP THROUGH 2027, POWERING GLOBAL EXPANSION
solid-white-shield