Oils, Lubricants & Additives

It’s vital you keep your engine oil clean and changed regularly to ensure you get the best performance from it. On Mailspeed Marine we have a huge selection of oils, lubricants and additives to keep your engine in its best condition. Including stock engine oil and other lubricants from Honda, Quicksilver, Ramonol, Starbrite and more. If you need to update your tanks, why not have a look at our fuel tanks, lines and connectors.


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  1. Quicksilver Premium Marine 2-Stroke Oil, Oils, Lubricants & Additives

    Quicksilver Premium Marine 2-Stroke Oil

    Premium exceeds the TC-W3 standard to provide 2 stroke engines with superior high temperature cleanliness and all round protection from corrosion.
    RRP: £37.14
    Saving: £27.15

  2. Quicksilver Quicksilver 4 Stroke Inboard & Sterndrive Oil - 1L, Oils, Lubricants & Additives

    Quicksilver 4 Stroke Inboard & Sterndrive Oil - 1L

    Quicksilver Marine Lubricant's Sterndrive & Inboard 4-cycle Engine Oil is a high performance marine engine lubricating oil designed for all 4-cycle sterndrive and inboard engines.

  3. Quicksilver Quicksilver 4 Stroke Sterndrive & Inboard Oil - 4L, Oils, Lubricants & Additives

    Quicksilver 4 Stroke Sterndrive & Inboard Oil - 4L

    Quicksilver's special blend marine grade oils are well known for their ability to maximise engine life. Not only does it provide excellent wear and corrosion protection and minimises carbon deposits, Quicksilver oil meets all stern drive and inboard manufacturers’ warranty requirements. Get peak performance out of your engine with Quicklsilver.
    RRP: £27.99
    Saving: £1.00

  4. Honda Honda 4 Stroke Oil 100ml, Oils, Lubricants & Additives

    Honda 4 Stroke Oil 100ml

    High quality engine oil for gasoline and diesel engine.
    RRP: £3.99
    Saving: £1.00

  5. Grotamar Grotamar 82, Oils, Lubricants & Additives

    Grotamar 82

    Grotamar 82 stops growth and biocorrosion. It is usually added directly to fuel but is much more soluble in water and will concentrate into the water phase and then into any biosludge where it kill the microbes there.

  6. Quicksilver 0.355L Dri Fuel, Oils, Lubricants & Additives

    Quicksilver 0.355L Dri Fuel

    Use Dri-Fuel to help eliminate stalling and hard starting due to moisture in the fuel.

  7. Honda Outboard Engine Oil - 4 Stroke, Oils, Lubricants & Additives

    Honda Outboard Engine Oil - 4 Stroke

    Four-Stroke engine oil for all Honda 4-Stroke outboard engines. 600ml bottle.

  8. Quicksilver 4 Stroke Outboard Oil, Oils, Lubricants & Additives

    Quicksilver 4 Stroke Outboard Oil

    Formulated specially for 4 stroke outboards. Normal automotive lubricants are not formulated to operate at the far higher rpm's of outboard motors. This oil contains special additives to suit it to su
    RRP: £27.76
    Saving: £18.77

  9. Quicksilver Diesel Engine Oil, Oils, Lubricants & Additives

    Quicksilver Diesel Engine Oil

    This multigrade SAE 15W-40 diesel engine oil has been formulated to meet heavy duty requirements and combat sludge & varnish formation. This oil contains a higher additive level than standard fleet oils and provides greater protection under severe operating conditions or where fuel quality is poor.
    RRP: £27.99
    Saving: £1.00

  10. Quicksilver Optimax 2 Stroke Engine Oil - DFI, Oils, Lubricants & Additives

    Quicksilver Optimax 2 Stroke Engine Oil - DFI

    The new Optimax/DFI 2-stroke oil is formulated to cope with the higher operating temperatures and reduced oiling rates of direct fuel injection outboards. It increases lubricity, minimises carbon deposits and reduces smoke, protecting your engine at all times. Specially developed for Direct Fuel Injected outboards.
    RRP: £43.99
    Saving: £1.00

  11. Starbrite Oil Absorbant Engine Pad/Maxi Boom, Oils, Lubricants & Additives

    Starbrite Oil Absorbant Engine Pad/Maxi Boom

    Absorbs oil, transmission fluid and fuel from engine pan so it can’t get into the bilge.

  12. Harken Mclube Sailcote Aerosol, Oils, Lubricants & Additives

    Harken Mclube Sailcote Aerosol

    Use Mclube to keep hardware rolling freely. Can be used on the following:Blocks, travellers, furlers, mast & boom tracks, slides & telltales.Spray or wipe on. In almost all cases one applications lasts an entire season.
    RRP: £39.99
    Saving: £27.00

  13. Starbrite Starbrite Spray on Engine Degreaser, Oils, Lubricants & Additives

    Starbrite Spray on Engine Degreaser

    82812 Engine Degreaser 12 Fl oz (12)

  14. Starbrite Starbrite Fogging Oil , Oils, Lubricants & Additives

    Starbrite Fogging Oil

    Prevents corrosion when storing inboard or outboard engines for an extended period of time.

  15. Starbrite Starbrite Snap & Zipper Lubricantz (2oz Tube), Oils, Lubricants & Additives

    Starbrite Snap & Zipper Lubricantz (2oz Tube)

    Snap & Zipper Lubricant with PTEF keeps snaps and zippers working properly on boat enclosures, vinyl cushions, boat covers and more. Each application lubricates and protects these metal and plastic parts against corrosion, excessive wear and salt spray. Won't wash off.

  16. Starbrite Starbrite -50°C Non Toxic Anti Freeze, Oils, Lubricants & Additives

    Starbrite -50°C Non Toxic Anti Freeze

    Protects water systems and engines from freeze ups during storage. Safe for copper, brass and all types of plastic. Non-toxic virgin propylene glycol formula. 30% formula contains corrosion inhibitors. 1 gallon bottle.

  17. Mailspeed Marine Stern Tube Lubricator, Oils, Lubricants & Additives

    Mailspeed Marine Stern Tube Lubricator

    Base drilled for vertical mounting. Suitable for stern tubes & rudder bearings etc. Brass lubricator. 3 metre nylon tubing. 2 x 1/8 inch BSP connector. 1 x 1/4 inch BSP connector. Dimensions: Overall height full: 285mm. Empty: 185mm. Base width: 85mm.

  18. Starbrite Starbrite Descaling Engine Flush, Oils, Lubricants & Additives

    Starbrite Descaling Engine Flush

    Removes scale, zebra mussels, general marine growth and vegetation from all marine engines. Allows engines to run cooler and more efficiently. Will not damage engine seals, gaskets or rubber impellers.
    RRP: £64.99
    Saving: £3.00

  19. Quicksilver Premium Blend Gear Lube, Oils, Lubricants & Additives

    Quicksilver Premium Blend Gear Lube

    Super duty premium blend gear lube specially designed for outboard engines.

  20. Quicksilver High Performance Gear Lube, Oils, Lubricants & Additives

    Quicksilver High Performance Gear Lube

    Super duty premium blend gear lube specially designed for Mercruiser stern drives. Don not mix with Premium Blend.

  21. Quicksilver Marine 2-4-C Lubricant with Teflon, Oils, Lubricants & Additives

    Quicksilver Marine 2-4-C Lubricant with Teflon

    Designed to with stand extreme friction in all marine applications, including steering systems, cable linkages and roller wheels bearings.

  22. Quicksilver Power Tune, Oils, Lubricants & Additives

    Quicksilver Power Tune

    A blend of solvents and oil designed to clean carburettors and injectors. Spray Power Tune engine cleaner into air intake to clean combustion chamber and exhaust system from carbon build up deposits.

  23. Starbrite Starbrite Wheel Bearing Grease - 14oz, Oils, Lubricants & Additives

    Starbrite Wheel Bearing Grease - 14oz

    This grease is designed for marine environment. Recommended for corrosive marine.

  24. Propshield Propshield Stern Gear Antifouling Grease, Oils, Lubricants & Additives

    Propshield Stern Gear Antifouling Grease

    Propshield is suitable for propellers, prop shafts, rudders, P brackets, trim tabs, outdrives & outboards and is compatible with stainless steel, bronze, aluminium & painted surfaces.

  25. Harken Tef Gel, Oils, Lubricants & Additives

    Harken Tef Gel

    When dismantling equipment for maintenance or repairs, this is the stuff you need. Tef-Gel® is a PTFE-based waterproof lubricant with anti-corrosion and anti-seize properties. Tef-Gel® does not break
    RRP: £14.99
    Saving: £2.00

  26. Ramonol White Grease, Oils, Lubricants & Additives

    Ramonol White Grease

    A high quality water resistant grease with good adhesion, good wear resistance and a wide temperature operating range. A universal grease for use on everything from stern glands to winches.

  27. * Marine 16 - Diesel Bug Treatment, Oils, Lubricants & Additives

    * Marine 16 - Diesel Bug Treatment

    Our diesel bug treatment is a biocide blend formulated especially for preventing or eradicating the fuel spoilage organisms known collectively as diesel bug. Very rarely over 15 years of selling the product have we had to clean out a tank but for severe contamination several doses may be required to break up and remove the biological sludge that forms.

  28. Starbrite Star Tron Tank Cleaner 64fl oz , Oils, Lubricants & Additives

    Starbrite Star Tron Tank Cleaner 64fl oz

    Exceptional in cleaning sludge and algae from gasoline and diesel tanks. Concentrated formula is used initially in the fuel treatment process. Slows the recurrence of new algae that can contaminate fuel.
    RRP: £48.99
    Saving: £2.00

  29. Starbrite Starbrite Star Tron Enzyme Fuel Treatment - Diesel Automotive, Oils, Lubricants & Additives

    Starbrite Star Tron Enzyme Fuel Treatment - Diesel Automotive

    Star Tron Diesel Formula makes engines start easier, run smooth, with improved fuel economy and reduced soot and other emissions. It will stabilize diesel fuel for up to 2 years. It works in all types and sizes of diesel engines.
    RRP: £57.99
    Saving: £2.00

  30. Quicksilver QUICKSILVER FUEL SYSTEM CLEANER - 355ML, Oils, Lubricants & Additives


    Cleans up deposits in petrol adn diesel injector; improves power and economy and helps eliminate fuel system corrosion. For 2 and 4 cycle engines.


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