10 bestCooling System Additivesof December 2024
112M consumers helped this year.
10% off
1
Wynn's Engine Oil Stop Leak Sealer Treatment Additive For All Engine Types 325ml & Car Radiator Stop Leak Sealant Antifreeze Coolant Repair Additive 325ml
Wynn's
9.9
2
Car Radiator & Hose Stop Leak Repair Additive Anti Corrosion 250ml Repairs Weld Cooling System Rads
ARZER
9.8
10% off
3
Wynn's Car Radiator Stop Leak Sealant Antifreeze Coolant Repair Additive 325ml
Wynn's
9.5
4
AMK® Holts Radweld Plus 250ml Coolant Leak Repair Suitable for All Cars No Clogging Works in Whole System Permanent Non Damaging
AMK
9.3
5
LIQUI MOLY Radiator Stop Leak | 150 ml | Cooler additive | SKU: 8956
Liqui Moly
9.0
OtherUp to 8% off
LIQUI MOLY 5189 Pro-Line Radiator Cleaner 1 Litre - Black
LIQUI MOLY Pro-Line Radiator Stop Leak K | 250 ml | Cooler additive | SKU: 5178
Wynn's Radiator Flush Cleaner For All Car Antifreeze & Coolant Systems 325ml
Red Line (80204 Water Wetter - Coolant Additives - 12 Oz Bottle
31% off
6
QuickFill - SEL9260: Central Heating Dosing Tool - Add Chemicals Like Fernox Central Heating Inhibitor, Sludge Remover, Leak Sealer & Sentinel X100 to Your Central Heating System
SPI
8.8
12% off
7
Holts Sealit Leak Repair 250ml, (Packing May Vary)
Holts
8.5
8
BRILLIANT, Yellow UV dye detector for A/C systems with R12, R134a, R1234yf, Hybrid & Electric Vehicles
ERRECOM
8.2
16% off
9
LIQUI MOLY Radiator Cleaner | 300 ml | Cooler additive | SKU: 1804
Liqui Moly
7.9
10
Hydra PIC-24 Petrol Injector Cleaner and Carb Cleaner Additive, 500ml Treats 500 litres, With Petrol Cleaner you get more Petrol Power with Octane Booster Removes Deposits Improves Combustion
HYDRA
7.6
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