10 bestCar Radiator Flushof August 2025
112M consumers helped this year.
1

Prestone Coolant Flush, Engine Coolant Flush For Car To Prevent Problems & Maximise Performance, Car Coolant Flush With Advanced Cleaner To Dissolve Corrosion & Scale, Safe For All Engines, 1 Litre
Holts

9.9
2

Holts HAFR0006B Antifreeze Coolant for Car VW-Audi-Seat-Skoda G12, G12+, G12++ & Speedflush Coolant Flush, Universal Car Radiator Flush, High Performance Coolant Flush For Radiators & Cooling
Holts

9.8
3

Prestone PREP0002A Cooling System Flush and Degreaser 1 Litre & Prestone LOYAF2100LGBA Coolant/Antifreeze - Ready to Use 1lt
Prestone

9.7
4

Wynn's Radiator Flush Cleaner For All Car Antifreeze & Coolant Systems 325ml
Wynn's

9.5
27% off
5

LIQUI MOLY Radiator Cleaner | 300 ml | Cooler additive | SKU: 1804
Liqui Moly

9.2
Other
6

KS Tools 515.1216 Cooling System Flush Gun
KS TOOLS

8.9
7

Wynn's 1831083 25541 Extreme Cooling System Degreaser, 325 ml
Wynn's

8.6
8

LIQUI MOLY 5189 Pro-Line Radiator Cleaner 1 Litre - Black
Liqui Moly

8.4
9

Lisle 60900 Heater Core Backflush Tool
Lisle

8.1
5% off
10

WOL Radiator Cleaner Cooling System Rust Remover – Liqui Moly Radiator Flush 1804 – Best Radiator Flush Chemical– Radiator Flush Solution Cooling Systems - 300ml (1 UNIT)
WOL

7.8

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