When you buy through our links, we may earn a commission. Learn more ›
Wiki Shopping
Wiki Shopping
TipsLearnAbout
Wiki Shopping

Engine & Radiator Flushes

56 engine & radiator flushes from Atlantis, BlueDevil Products, Liqui Moly and more.

Recommended Engine & Radiator Flushes

Lubegard

Transmission

+Designed for transmission cooler flushing
+Includes a 2-in-1 fitting for cooler lines
+13.25 oz bottle size
No price recorded yet.
Prestone

Radiator

+Cleans radiator, heater core and hoses in one treatment
+Sold in a 6-pack of 22 oz bottles
+Each bottle holds 22 oz of cooling system cleaner
No price recorded yet.
Tuoksullxm

Engine

+6.0 liter capacity for a full oil cooler flush
+Includes a T port and aluminum anodized adapter
+Aluminum construction for the adapter
No price recorded yet.
FJC

Engine

+Holds 32 fl oz for flushing an air conditioning system
+Made as an A/C flush for engine air conditioning
−Limited to A/C system flushing rather than full engine cleaning
No price recorded yet.
Four Seasons
+Holds 32 oz of flush solvent in a 946 ml bottle
+Super Flush name identifies it as a solvent for flushing systems
−Limited to flushing use, with no added protective or sealing function
No price recorded yet.
Johnsen's

Engine

+Holds 32 oz of engine flush in one container
+Made as an engine flush for cleaning engine internals
−Requires a separate step to drain and refill oil after use
No price recorded yet.
MotorPower Care

Engine

+Three-step kit combines a fuel additive, foam spray and engine flush
+Designed to address P0420 and P0430 catalytic converter codes
No price recorded yet.
Prestone

Radiator

+Radiator flush and cleaner for cooling system maintenance
+Formulated to clean radiator deposits from the cooling system
No price recorded yet.
Quicksilver

Engine

+Flushing kit made for select Mercury 2.5-9.9 outboard engines
+Helps flush saltwater and debris from outboard engines after use
−Fits only select Mercury 2.5-9.9 outboard models
No price recorded yet.
Rislone
+Pack of four 11.5 oz bottles for multiple cooling system services
+Cooling system cleaner and super flush in one product
No price recorded yet.
Sea Foam

Transmission

+Single 16 oz bottle for automatic transmission treatment
+Designed for use in automatic transmission fluid systems
No price recorded yet.
Sea Foam

Transmission

+Single 16 oz bottle for automatic transmission treatment
+Designed for use in automatic transmission fluid systems
No price recorded yet.
Star Brite
+Removes salt deposits and engine deposits from marine engines
+Marine engine flush kit helps prevent buildup in cooling passages
No price recorded yet.

Related pages

Antifreezes & Coolants72Brake Fluids64Heavy Duty Oils & Fluids12Motor Oils73Power Steering Fluids57Radiator Conditioners & Protectants25Refrigerants52Transmission Fluids66Windshield Washer Fluids75Winter Car Fluids65Cooling System Additives79Engine & Oil Additives71

Spec scores, pros and cons, and prices are explained in the How it works section of the About page.