10 bestOil Additivesof June 2026

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

33% off

STP

9.8

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

Redex

9.7

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

15% off

Liqui Moly

9.5

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

Lucas Oil

9.3

OtherRelated productsUp to 22% off

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

Millers Oils Diesel Power Ecomax Fuel Additive Treatment 500ml 0.5L NEW IMPROVED

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

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

Lucas Oil 10279 Gallon Engine Stop Leak, 3.785 Litre

Lucas Oil

9.0

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

39% off

Liqui Moly

8.7

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

8.5

LIQUI MOLY Pro-Line Oil Loss Stop | 1 L | Oil additive | SKU: 5182

Liqui Moly

8.2

Liqui Moly 2770 - Engine Oil Additive

23% off

Liqui Moly

7.9