The MP 3 Ultra, MP3 Sport and MP+ Sport lubricants have the prestigious NMMA accreditation which is testament to their quality. It is the foremost specification for the marine industry and assures the user that the products meet and exceed exacting standard
PRODUCT DETAILS
1 Litre ROCK OIL
MARINE PSF
Marine power steering and transmission fluid
Rock Oil British Manufacturer of High Quality Lubricants and fuels
SSI MARINE
Marine PSF is a high performance, multi functional power transmission fluid designed specifically for marine applications, including power trim units and hydraulic steering systems. Marine PSF can be employed in major marine equipment brands. Its advanced marine formula is designed to provide maximum protection and Resistance to corrosion while providing optimum performance and extending component life
Benefits:
Advanced additives provide maximum protection
Superior resistance to corrosion & wear
Ensures optimum steering life and performance
Excellent Anti-foaming & fast de-aeration
Outstanding response in low temperatures
Suitable for use where ATF DII fluid is advised
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.
Established in 1928, Rock Oil supply high quality lubricants and fuels for all markets. Our products are manufactured from the finest state of the art synthetic chemicals and oils; they meet and surpass all relevant national and international standards.
Marine Lubricants Range
Rock Oil's vast experience in both 2 and 4 stroke lubrication has been used to produce our high performing range of marine lubricants for both inboard and outboard applications.
SHIPPING & DELIVERY
Delivery & Returns Policy
Delivery
Standard Delivery
- £6: Royal Mail Tracked 24 Service
- £3.99: Large Letter - Royal Mail 1st Class Post (Untracked)
We offer free delivery on all orders over £150 (excludes outboard engines).
Orders placed before 1:00 PM (Monday-Friday) are usually dispatched the same working day.
Most parcels are delivered within 24 hours, but please allow extra time for courier delays that may occur outside our control.
For outboard engines, please contact us for a delivery quote.
Important: Please ensure your shipping address is correct before completing checkout. SSI Marine is not responsible for parcels sent to an incorrect address provided by the buyer.
Tracking Your Order
Once your order has been dispatched, you will receive a tracking number via email (after 5 PM on the day of dispatch).
Tracking is available only for parcels sent via Royal Mail Tracked 24.
Large Letter orders are sent via Royal Mail 1st Class Post (untracked).
Returns
We accept returns of unused and undamaged items within 30 days of purchase.
Returned items must be in sellable condition and include the original packaging.
Please do not tape, label, or write directly on the product's original box.
Important: Do not return items in their original product boxes only, they must be placed inside a protective outer box or bag. Parcels returned like the example below will be subject to a 20% restocking fee.
Return shipping costs are the customer's responsibility.
Please include your order details and reason for return inside the parcel.
Refunds
Refunds are issued for the item purchase price only (shipping costs are non-refundable).
All refunds will be made using the same payment method as your original order.
Items returned in poor condition or without proper packaging may incur a 20% restocking fee.









