10 bestEngine Additiveof December 2024
112M consumers helped this year.
30% 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
9.8
14% off
2
Wynn's W12264 Extreme Diesel System Fuel Injector Cleaner Engine Additive Treatment 325ml
Wynn's
9.6
3
Archoil AR6900-D Max Advanced Diesel Additive Concentrate, 1L Treats 1,000L of Fuel, Diesel Fuel Injector Cleaner, DPF Filter EGR Valve Turbo Cleaner, Super Diesel Converter. (1Litre)
Archoil
9.4
4
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
9.2
5
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
9.0
OtherUp to 6% off
39% off
6
LIQUI MOLY Pro-Line Engine Flush | 500 ml | Oil additive | SKU: 2427
Liqui Moly
8.7
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
28% off
8
LIQUI MOLY Oil Additive | 300 ml | Oil additive | SKU: 2591
Liqui Moly
8.2
29% off
9
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
8.0
10% off
10
Wynn's Engine Oil Stop Leak Sealer Treatment Additive For All Engine Types 325ml
Wynn's
7.7
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