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Engine Oil & Additives

Marine engine oils serve a variety of useful functions in preserving and protecting an inboard or outboard motor. Over time general wear and tear, as well as microbial contamination and excess water, can hamper the performance of a vessel’s engine. As such, boat engine oils and additives serve to protect an engine and help it last longer. Browse our selection of marine diesel oils and fuel treatments below.

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Showing 1–36 of 42 results

Marine 16 Diesel Fuel Complete - Image
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Marine 16 Diesel Fuel Complete

£ 23.95
Marine 16 Diesel Bug Fuel Treatment 100ml - Image
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Marine 16 Diesel Bug Fuel Treatment 100ml

£ 14.38 £ 11.95
Quicksilver Corrosion Guard - Image
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Quicksilver Corrosion Guard

£ 24.95
Fuel Set - Fuel Conditioner - Image
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Fuel Set – Fuel Conditioner

£ 29.40 £ 26.95
Liqui Moly Marine 4T Motor Oil - 10W-30Liqui Moly Marine 4T Motor Oil - 10W-40
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Liqui Moly Marine 4T Motor Oil

£ 12.95 - £ 69.95
Enzyme Energy (Soltron) Fuel Treatment 500ml - Image
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Enzyme Energy (Soltron) Fuel Treatment 500ml

£ 59.95 £ 54.95
Quicksilver 4-Stroke Outboard Oil 4 Litre - Image
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Quicksilver 4-Stroke Outboard Oil 4 Litre

£ 51.50 £ 49.95
Quicksilver Quickstor Fuel Stabiliser 355ml - Image
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Quicksilver Quickstor Fuel Stabiliser 355ml

£ 24.95
Liqui Moly Marine Fuel Stabiliser - Image
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Out of stock

Liqui Moly Marine Fuel Stabiliser

£ 22.52 £ 17.95
Star Tron Diesel Additive - Image
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Star Tron Diesel Additive

£ 21.90 - £ 79.95
Quicksilver 2-Stroke Oil 4L 30 - New Image
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Quicksilver 2-Stroke Oil 4L 30

£ 64.95 £ 49.95
Quicksilver 4-Stroke Outboard Oil 4 Litre 10w-30 - Image
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Quicksilver 4-Stroke Outboard Oil 4 Litre 10w-30

£ 55.08 £ 54.95
Quicksilver Diesel Oil - New Image
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Quicksilver Diesel Oil

£ 47.70 £ 46.95
Marine 16 Diesel Bug Treatment 500ml - Image
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Marine 16 Diesel Bug Treatment 500ml

£ 51.11 £ 44.95
Liqui Moly Marine Grease - ImageLiqui Moly Marine Grease - Image
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Liqui Moly Marine Grease

£ 9.95 - £ 11.95
Morris Performance plus 15W/40 Oil 5L - Image
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Morris Performance plus 15W/40 Oil 5L

£ 39.95
Quicksilver 4 Stroke Outboard Oil 1ltr - New Image
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Quicksilver 4 Stroke Outboard Oil 1ltr

£ 15.28 £ 14.95
Enzyme Energy (Soltron) Fuel Treatment 125mls - Image
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Enzyme Energy (Soltron) Fuel Treatment 125mls

£ 14.95
Liqui Moly Marine ATF - Image
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Liqui Moly Marine ATF

£ 14.74 £ 11.95
Quicksilver Quickcare Ethanol - QUICKSILVER QUICKCARE ETHANOL
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Quicksilver Quickcare Ethanol

£ 19.95
Quicksilver 2-Stroke Premium Plus - Image
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Quicksilver 2-Stroke Premium Plus

£ 16.95
Star Tron Enzyme Fuel Treatment 250ml - Image
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Star Tron Enzyme Fuel Treatment 250ml

£ 17.92 £ 15.95
Wessex Chemicals Marinsed Morendo DD Fuel Additive 1 Litre - Image
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Wessex Chemicals Marinsed Morendo DD Fuel Additive 1 Litre

£ 21.58 £ 20.95
Quicksilver 2-Stroke Oil - New Image
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Quicksilver 2-Stroke Oil

£ 15.00 £ 13.95
Liqui Moly Battery Terminal Grease - Image
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Liqui Moly Battery Terminal Grease

£ 5.99 £ 5.95
Liqui Moly Engine Flush Plus - Image
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Liqui Moly Engine Flush Plus

£ 11.15 £ 9.95
39%
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Liqui Moly Marine Storage Fogging Oil - Image
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Liqui Moly Marine Storage Fogging Oil

£ 16.24 £ 9.95
Morris Aqua Max Outboard Oil 2 - MORRIS AQUA MAX OUTBOARD OIL 2
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Morris Aqua Max Outboard Oil 2

£ 10.95
Morris Golden Film 10w-40 oil - MORRIS GOLDEN FILM SAE 10W/40
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Morris Golden Film 10w-40 oil

£ 40.78 £ 39.95
Liqui Moly Marine 2T DFI Motor Oil (2 Stroke) - Image
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Liqui Moly Marine 2T DFI Motor Oil (2 Stroke)

£ 105.66 £ 99.95
Liqui Moly Marine Single Grade SAE 30 Engine Oil - Image
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Out of stock

Liqui Moly Marine Single Grade SAE 30 Engine Oil

£ 13.37 £ 11.95
Quicksilver Quickleen Engine Clean - QUICKSILVER QUICKCARE ENGINE
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Quicksilver Quickleen Engine Clean

£ 17.95
Pro Star Super Premium 4 Stroke Oil - ImagePro Star Super Premium 4 Stroke Oil - 10W 40
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Pro Star Super Premium 4 Stroke Oil

£ 19.95 - £ 38.95
Quicksilver 4 Inb Oil - Image
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Quicksilver 4 Inb Oil

£ 15.32 £ 14.95
Liqui Moly Marine Diesel Protect - Image
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Liqui Moly Marine Diesel Protect

£ 29.95 - £ 49.95
Liqui Moly Marine Fuel System Cleaner - Image
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Liqui Moly Marine Fuel System Cleaner

£ 20.23 £ 17.95