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10 bestRadiator Flushesof May 2025

112M consumers helped this year.

1

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 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

9.7

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2

Wynn's Car Radiator Stop Leak Sealant Antifreeze Coolant Repair Additive 325ml
Wynn's Car Radiator Stop Leak Sealant Antifreeze Coolant Repair Additive 325ml

Wynn's

9.4

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3

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
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

9.1

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15% off

4

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

Liqui Moly

8.8

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5

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

Wynn's

8.5

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Related productsUp to 3% off

STP Radiator Flush 300 ml, Quickly Cleans All Radiator Cleaning Systems, Prevents Overheating, Rust and Corrosion, Mechanical Car Cleaning Products, Made in the UK

STP Radiator Flush 300 ml, Quickly Cleans All Radiator Cleaning Systems, Prevents Overheating, Rust and Corrosion, Mechanical Car Cleaning Products, Made in the UK

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WYNNS RADIATOR FLUSH 325ML

WYNNS RADIATOR FLUSH 325ML

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6

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

Liqui Moly

8.2

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7

Wynn's 1831005 45941 Cooling System Flush 325 ml
Wynn's 1831005 45941 Cooling System Flush 325 ml

Wynn's

7.9

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5% off

8

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

WOL

7.6

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9

LIQUI MOLY Motorbike Radiator Cleaner | 150 ml | Motorcycle cooler -additive | SKU: 3042, black
LIQUI MOLY Motorbike Radiator Cleaner | 150 ml | Motorcycle cooler -additive | SKU: 3042, black

Liqui Moly

7.3

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10

Carlube Rad Flush, 300 ml
Carlube Rad Flush, 300 ml

Carlube

7.0

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