10 bestOil Additivesof April 2025
112M consumers helped this year.
47% 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

10.0
7% off
2

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

10.0
10% off
3

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

9.8
8% off
4

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
5% off
5

STP GST62450EN06 Engine Flush for Petrol & Diesel Engines 450 ml
STP

9.4
OtherUp to 29% off
6

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

9.1
10% off
7

Wynn's Engine Oil Stop Leak Sealer Treatment Additive For All Engine Types 325ml
Wynn's

8.9
23% off
8

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

8.6
9

Wynn's Engine Oil Flush Cleans Inside Engine & Removes Harmful Deposits 425ml
WYNNS

8.3
17% off
10

Liqui Moly 2770 - Engine Oil Additive
Liqui Moly

8.1

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