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10 bestOil Additiveof May 2025

112M consumers helped this year.

8% off

1

STP Ultra 5 in 1 Petrol 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 Petrol 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 Petrol 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

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

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

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

Redex

9.8

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25% off

3

STP Diesel Fuel Additive Twin Pack

STP Diesel Fuel Additive Twin Pack

STP Diesel Fuel Additive Twin Pack

STP

9.6

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10% off

4

Wynn's Engine Oil Stop Leak - Prevents & Stops Oil Leaks - Restores Elasticity of Seals & O-Rings - Lubricates & Protects Engine Seals - Safe for All Engine Oils - 325ml

Wynn's Engine Oil Stop Leak - Prevents & Stops Oil Leaks - Restores Elasticity of Seals & O-Rings - Lubricates & Protects Engine Seals - Safe for All Engine Oils - 325ml

Wynn's Engine Oil Stop Leak - Prevents & Stops Oil Leaks - Restores Elasticity of Seals & O-Rings - Lubricates & Protects Engine Seals - Safe for All Engine Oils - 325ml

Wynn's

9.4

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5

LIQUI MOLY Oil Additive | 300 ml | Oil additive | SKU: 2591

LIQUI MOLY Oil Additive | 300 ml | Oil additive | SKU: 2591

LIQUI MOLY Oil Additive | 300 ml | Oil additive | SKU: 2591

Liqui Moly

9.1

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OtherRelated productsUp to 14% off

Redex Lead Replacement Fuel Additive For Petrol Engines, Lubricates & Protects Your Engine, Lead Additives, Classic Cars Protection With Redex Petrol Additive For Cars, Use Every Tank, 250ml - Pink

Redex Lead Replacement Fuel Additive For Petrol Engines, Lubricates & Protects Your Engine, Lead Additives, Classic Cars Protection With Redex Petrol Additive For Cars, Use Every Tank, 250ml - Pink

Lucas Oil 10065 Lead Replacer-1L

Lucas Oil 10065 Lead Replacer-1L

Lucas Oil 40576 Safeguard Ethanol Fuel Conditioner-473ml

Lucas Oil 40576 Safeguard Ethanol Fuel Conditioner-473ml

WYNNS Formula Gold Engine Oil Treatment Increase Compression And Reduces Wear Petrol & Diesel

WYNNS Formula Gold Engine Oil Treatment Increase Compression And Reduces Wear Petrol & Diesel

9% off

6

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

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

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

Liqui Moly

8.9

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7

Wynn's Formula Gold Petrol System Treatment Performance & Fuel Economy Restoring Additive 500ml

Wynn's Formula Gold Petrol System Treatment Performance & Fuel Economy Restoring Additive 500ml

Wynn's Formula Gold Petrol System Treatment Performance & Fuel Economy Restoring Additive 500ml

Wynn's

8.6

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8

Liqui Moly 2770 - Engine Oil Additive

Liqui Moly 2770 - Engine Oil Additive

Liqui Moly 2770 - Engine Oil Additive

Liqui Moly

8.4

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9

Wynn's Diesel Injector Cleaner Engine Fuel System Additive Treatment 325ml

Wynn's Diesel Injector Cleaner Engine Fuel System Additive Treatment 325ml

Wynn's Diesel Injector Cleaner Engine Fuel System Additive Treatment 325ml

Wynn's

8.1

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10

Wynn's Super Charge Oil Treatment - Enhances Viscosity - Restores Compression & Pressure - Reduces Oil Consumption & Smoke Emissions - Prevents Metal Contact & Engine Wear - 425ml

Wynn's Super Charge Oil Treatment - Enhances Viscosity - Restores Compression & Pressure - Reduces Oil Consumption & Smoke Emissions - Prevents Metal Contact & Engine Wear - 425ml

Wynn's Super Charge Oil Treatment - Enhances Viscosity - Restores Compression & Pressure - Reduces Oil Consumption & Smoke Emissions - Prevents Metal Contact & Engine Wear - 425ml

Wynn's

7.8

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