10 bestEngine Oil Treatmentsof May 2025
112M consumers helped this year.
12% off
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

9.8
10% off
2

STP Engine Stop Leak for Petrol & Diesel Engines 300 ml, Improved Concentrated Formula, Conditions your Engine and Prevents Minor Oil Leaks, Mechanical Car Cleaning Products, Made in the UK
STP

9.6
10% off
3

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
6% off
4

Liqui Moly 2770 - Engine Oil Additive
Liqui Moly

9.1
5

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

8.9
OtherUp to 7% off
6

Slick 50 Engine Treatment Oil Additive Treatment 500ml 61399500
Slick

8.6
30% off
7

LIQUI MOLY Motor Oil Saver | 300 ml | Oil additive | SKU: 1802
Liqui Moly

8.3
8

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

8.1
9

Wynn's Stop Smoke For Oil Additive For Reducing Petrol & Diesel Engine Exhaust Emissions
Wynn's

7.8
10

Sea Foam SS14 Engine Cleaner and Lube Foam
Sea Foam

7.5

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