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 46 results

Marine 16 Diesel Bug Fuel Treatment 100ml - Image

Marine 16 Diesel Bug Fuel Treatment 100ml

£14.38 £12.95
Marine 16 Diesel Fuel Complete - Image
Out of stock

Marine 16 Diesel Fuel Complete

£26.95
Quicksilver Quickstor Fuel Stabiliser 355ml - Image

Quicksilver Quickstor Fuel Stabiliser 355ml

£24.95
Fuel Set - Fuel Conditioner - Image

Fuel Set – Fuel Conditioner

£31.50 £29.95
Enzyme Energy (Soltron) Fuel Treatment 500ml - Image
Out of stock

Enzyme Energy (Soltron) Fuel Treatment 500ml

£59.95 £54.95
Liqui Moly Marine 4T Motor Oil - 10W-30

Liqui Moly Marine 4T Motor Oil

£19.95 - £69.95
Quicksilver 4-Stroke Outboard Oil 4 Litre 10w-30 - Image

Quicksilver 4-Stroke Outboard Oil 4 Litre 10w-30

£55.08 £54.95
Star Tron Diesel Additive - Image

Star Tron Diesel Additive

£24.95 - £64.95
Quicksilver 2-Stroke Oil - New Image

Quicksilver 2-Stroke Oil

£16.95
Quicksilver 2-Stroke Oil 4L 30 - Image

Quicksilver 2-Stroke Oil 4L 30

£64.95 £49.95
Quicksilver Corrosion Guard - Image

Quicksilver Corrosion Guard

£25.95
Quicksilver Quickcare Ethanol - QUICKSILVER QUICKCARE ETHANOL

Quicksilver Quickcare Ethanol

£22.95
Morris Performance plus 15W/40 Oil 5L - Image

Morris Performance plus 15W/40 Oil 5L

£68.25 £54.95
Quicksilver Premium 2-Stroke Oil 4L 30 - Image

Quicksilver Premium 2-Stroke Oil 4L 30

£47.95
Quicksilver Diesel Oil - New Image

Quicksilver Diesel Oil

£46.95
Enzyme Energy (Soltron) Fuel Treatment 125mls - Image
Out of stock

Enzyme Energy (Soltron) Fuel Treatment 125mls

£14.95
Quicksilver 4 Stroke Outboard Oil 1ltr - New Image

Quicksilver 4 Stroke Outboard Oil 1ltr

£15.04 £14.95
Liqui Moly Marine Fuel Stabiliser - Image
Out of stock

Liqui Moly Marine Fuel Stabiliser

£22.52 £17.95
Liqui Moly Marine Storage Fogging Oil - Image

Liqui Moly Marine Storage Fogging Oil

£18.38 £14.95
40%
OFF
Starbrite Premium 2 Cycle Engine Oil TC-W3 Synthetic Blend 3.78L - Image

Starbrite Premium 2 Cycle Engine Oil TC-W3 Synthetic Blend 3.78L

£57.94 £34.95
Liqui Moly Marine Multi-Spray - Image

Liqui Moly Marine Multi-Spray

£15.59 £11.95
Liqui Moly Marine Diesel Protect - Image

Liqui Moly Marine Diesel Protect

£29.95 - £49.95
Liqui Moly Marine Single Grade SAE 30 Engine Oil - Image

Liqui Moly Marine Single Grade SAE 30 Engine Oil

£17.82 £14.95
Liqui Moly Battery Terminal Grease Spray - Image

Liqui Moly Battery Terminal Grease Spray

£12.95
Pro Star Super Premium 4 Stroke Oil - Image

Pro Star Super Premium 4 Stroke Oil

£19.95
Quicksilver 2-Stroke Premium Plus - Image

Quicksilver 2-Stroke Premium Plus

£19.95
Liqui Moly Marine Fuel System Cleaner - Image

Liqui Moly Marine Fuel System Cleaner

£20.23 £17.95
LIQUI MOLY Marine Fully Synthetic Gear Oil - 75W-90 250ml - Image

LIQUI MOLY Marine Fully Synthetic Gear Oil – 75W-90 250ml

£16.66 £13.95
Liqui Moly Marine ATF - Image

Liqui Moly Marine ATF

£18.72 £14.95
Liqui Moly Marine Grease - Image

Liqui Moly Marine Grease

£11.95
Liqui Moly Engine Flush Plus - Image

Liqui Moly Engine Flush Plus

£11.15 £9.95
38%
OFF
Liqui Moly Diesel Particulate Filter Protector 250ml - Image

Liqui Moly Diesel Particulate Filter Protector 250ml

£7.95 £4.95
Marine 16 Diesel Bug Test Kit - Image

Marine 16 Diesel Bug Test Kit

£19.78 £14.95
Liqui Moly Marine Super Diesel Additive - Image

Liqui Moly Marine Super Diesel Additive

£29.35 £24.95
LIQUI MOLY MARINE PWC OIL 10W-40 1L - Image

LIQUI MOLY MARINE PWC OIL 10W-40 1L

£12.88 £11.95
Dutton Lainson GoldenRod Bowl Fuel Tank Filter Wrench - Image

Dutton Lainson GoldenRod Bowl Fuel Tank Filter Wrench

£15.36 £12.95