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10 bestOil Additivesof January 2026

112M consumers helped this year.

15% off

1

STP Ultra 5 in 1 Diesel Fuel System Cleaner 400ml , Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK
STP Ultra 5 in 1 Diesel Fuel System Cleaner 400ml , Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK

STP

9.9

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2

Sea Foam Motor Tune - Up SF16 For Petrol and Diesel Engines (6)
Sea Foam Motor Tune - Up SF16 For Petrol and Diesel Engines (6)

Sea Foam

9.8

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11% off

3

LIQUI MOLY Cera Tec 3721 I Ceramic Wear & Tear Protection for Petrol & Diesel Engines I Smoother Engine Performance, Less Friction & Lower Fuel Consumption I Ceramic Additive 300 ml Pack of 1
LIQUI MOLY Cera Tec 3721 I Ceramic Wear & Tear Protection for Petrol & Diesel Engines I Smoother Engine Performance, Less Friction & Lower Fuel Consumption I Ceramic Additive 300 ml Pack of 1

Liqui Moly

9.7

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4

Lucas Oil 10002 Heavy Duty Oil Stabilizer, 3.785 Litre, White
Lucas Oil 10002 Heavy Duty Oil Stabilizer, 3.785 Litre, White

Lucas Oil

9.5

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5

LIQUI MOLY Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2427
LIQUI MOLY Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2427

Liqui Moly

9.3

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Related productsUp to 29% off

Redex Diesel Fuel System Cleaner 250ml, Diesel Additives To Remove Harmful Emissions, Maximise Performance & Increase Fuel Economy With Redex Fuel Additives For Diesel Engines, Suitable For Hybrids

Redex Diesel Fuel System Cleaner 250ml, Diesel Additives To Remove Harmful Emissions, Maximise Performance & Increase Fuel Economy With Redex Fuel Additives For Diesel Engines, Suitable For Hybrids

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Wynn's Super Charge Oil Treatment Compression Restoring Additive For Petrol & Diesel Engines 425ml (Pack of 2)

Wynn's Super Charge Oil Treatment Compression Restoring Additive For Petrol & Diesel Engines 425ml (Pack of 2)

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LIQUI MOLY Diesel Particulate Filter Protector | 250 ml | Diesel additive | SKU: 7180, Gray

LIQUI MOLY Diesel Particulate Filter Protector | 250 ml | Diesel additive | SKU: 7180, Gray

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Fastcar 2 x Redex Diesel System Cleaner (500ml For The Price Of 250ml)

Fastcar 2 x Redex Diesel System Cleaner (500ml For The Price Of 250ml)

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12% off

6

LIQUI MOLY Oil Additive | 200 ml | Oil additive | SKU: 7178
LIQUI MOLY Oil Additive | 200 ml | Oil additive | SKU: 7178

Liqui Moly

9.0

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7

Lucas Oil 10279 Gallon Engine Stop Leak, 3.785 Litre
Lucas Oil 10279 Gallon Engine Stop Leak, 3.785 Litre

Lucas Oil

8.7

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23% off

8

Redex Octane Booster, Fuel Additives For Petrol Engines, Maximise Performance & Increase Fuel Economy Petrol Additive For Cars, Boost Engine Performance & Improve Power, 250ml
Redex Octane Booster, Fuel Additives For Petrol Engines, Maximise Performance & Increase Fuel Economy Petrol Additive For Cars, Boost Engine Performance & Improve Power, 250ml

Redex

8.5

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9

DERV Control - Biocide for Diesel/Gas Oil & Red Diesel (5 Litres)
DERV Control - Biocide for Diesel/Gas Oil & Red Diesel (5 Litres)

Chemiphase

8.2

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20% off

10

LIQUI MOLY Oil Additive | 125 ml | Oil additive | SKU: 1800
LIQUI MOLY Oil Additive | 125 ml | Oil additive | SKU: 1800

Liqui Moly

7.9

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