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HSF Marine Hydraulic Steering Fluid 1L OIL RockOil outboard inboard boat

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HSF Marine Hydraulic Steering Fluid 1L OIL RockOil outboard inboard boat

HSF Marine Hydraulic Steering Fluid 1L OIL RockOil outboard inboard boat


HSF Marine Hydraulic Steering Fluid 1L OIL RockOil outboard inboard boat

1 Litre  ROCK OIL 


Marine Hydraulic Steering Fluid / Oil 

Rock Oil  British Manufacturer of High-Quality Lubricants and fuels 

Will fit all steering systems 


HLP 10 Hydraulic Oil is suitable for most hydraulic systems where high levels of anti-wear and protection are required in conjunction with good service life reliability. 

It is also suitable for a wide range of other applications where machinery lubricants with excellent anti-wear lubrication and resistance to degradation in service are required. 

Applications can include systems incorporating high speed gears and bearings, pumps, blowers and other uses where this type and quality of lubricant can assist with lubricants rationalisation. 

The HLP 10 Hydraulic Oil is formulated using extremely high quality base oils and incorporates additive treatments to provide excellent service life with protection against corrosion, wear, oxidation and foaming.

Over 2000 Hour TOST life, twice the life of many conventional mineral oil based hydraulic fluids

Outstanding cleanliness and purity, guaranteed ISO cleanliness rating of 21/19/16 or better

Excellent protection of machinery and systems against corrosion and wear

Excellent service life associated with excellent resistance to oxidation and thermal degradation

Excellent anti-foam and de-aeration performance

Compatible and miscible in storage and in service with most other mineral oils

Good filter ability for use in conjunction with most hydraulic and lubricating oil system filters

If you have any concerns regarding the suitability of the item please ask before purchase.

If the part looks the same like yours is not always the right one for your outboards so please double check.



We offer free shipping on all orders over £150 (excluded outboard engines, trailers)

Standard Shipping - £ 8.50

Orders are typically shipped within 1 business day of receipt of payment. We ship via Royal Mail Tracked 24 delivery service. Delivery times vary depending on the delivery destination.

For engines delivery cost please ask for a quote.

It is the buyer's responsibility to ensure that the correct shipping address is supplied.

All item(s) will be despatched to the registered address.

Tracking your order:

Once your order has been shipped, you will receive a tracking number via email. You can track your order online using the tracking number provided.


We accept returns of unused and undamaged items within 30 days of purchase.

To return an item please contact us for a return authorisation number. Return shipping costs are the responsibility of the customer.


Refunds will be issued for the purchase price of the item, less shipping costs. Refunds will be issued in the same form of payment as the initial purchase.

Customer Reviews

Based on 2 reviews
Ian McCulloch (mook4859)
Good firm

Good quality oil and good firm

Peter Barnes (fen60)
Perfect oil for my seastar

Perfect oil for use with my seastar steering. Thank you


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