Best Radiator Cleaner Fluids Of 2019 Reviews
Your radiator has the task of cooling the important parts of your vehicle. If the operating parts of your car are not running at the correct temperature, neither these parts nor your car are likely to last long.
Since most of these parts move at high speeds and are designed in such a way that they always brush against each other synchronously, they are subject to constantly high thermal values due to friction.
And to keep everything as it should, only an occasional, simple radiator flush with one of the best radiator cleaning fluids is required in this test.
Best Radiator Cleaner Fluids 2019 Reviews
- Prestone AS105-6PK Radiator Flush and Cleaner
- Royal Purple ROY01600 Purple Ice Super Coolant
- Design Engineering 040206 Heater Hotter Performance Radiator Additive
- Irontite ThoroFlush
- Liqui Moly 2051 Radiator Cleaner Ó 300 ml
- BlueDevil Radiator Flush 00204
- Gunk Motor Medic C1412 10-Minute Radiator Flush
- Design Engineering 040200 Radiator Relief Coolant Additive
- BarÙs Leaks 1211 10 Minute Flush
- Permatex 80030 Heavy Duty Radiator Cleaner
Prestone AS105-6PK Radiator Flush and Cleaner

Designed for professional and personal use, the Prestone AS105-6PK is a combo of radiator flush and cleaning compounds. It comes in a pack of six so you can use and re-use. The flush/cleaner combo is designed for all extremes of radiator use: light flushing and heavy-duty cleaning.
This 22-ounce product is manufactured with a non-toxic, non-acidic formula and is safe to come in contact with any metal. Its special composition is effective at removing heavy radiator deposits by drawing metal oxides into the solution for flushing.
The AS105-6PK is very strong and assures you get a fully restored-to-maximum cooling system efficiency and no overheating afterward. It likewise removes heavy rust and scale deposits in your radiator that otherwise might cause engine failure.
This product sure is the definition of “clean.”
Royal Purple ROY01600 Purple Ice Super Coolant

The ROY01600 Purple Ice Super Coolant is a 12 ounce per pack radiator cleaner fluid that has a dual function. The first is that it cleans your radiator, the second, that it prevents further rust/corrosion or formation of scale deposits.
It possesses a wetting agent component that offers enhanced protection of aluminum, which is what most radiators are made of.
It is compatible with both diesel and petrol cars and promises to effectively reduce the surface tension of your radiator coolant regardless of your vehicle type. This property allows for more heat to be transferred outside your radiator and translates to more horsepower for your engine.
This feature is also a vital one as it reduces the hot spots in your engine and cylinder heads thus ensuring your vehicle runs optimally all the time.
The Purple Ice does not contain glycol and as such is safe and legal for use with high powered engines.
It also lubricates your water pump seals when used with antifreeze (winter time use) or water (summer time use). It is compatible with all flush mixes even the traditional green silicate based glycols or the newer version OAT or HOAT based glycols.
You just have to mix one or more ounces of coolant in a 50/50 ratio with filtered drinking water, tap water or glycols. Pour in your radiator you’ll be good to go in no time.
Design Engineering 040206 Heater Hotter Performance Radiator Additive

The 040206 Heater Hotter from Design Engineering has a simple role, but it takes this assignment very seriously. This product is simple to use as you only add it in with your radiators existing contents.
The 040206 works to accelerate heat transfer from your engine to your vehicle heater thus improving your engine warm-up time by up to 50 percent. Each 16-fluid-ounce bottle contains no glycol and as such is safe with all types of antifreeze.
This item guarantees a reduction in your engines wear by lowering engine heat within a short time and for long periods afterward.
Irontite ThoroFlush

The Irontite team brings a new proposition to the table. They give you a 16-ounce powder formula that does just about everything. This powerful flush functions as a radiator cleaner, engine coolant, and a fuel tank cleaner!
It features industrial grade strength and is therefore compatible with small, medium size cars, as well as trucks and trailers. It’s compatible with all radiator types (cast iron, aluminum or plastic) and with both diesel and petrol engines.
The ThoroFlush loosens all forms of irregularities such as rust, scale deposits, grease, oil clots and sludge from your vehicle radiator.
Even better, this product opens and cleans out your clogged heater pores and is compatible with all coolant exchange machines. As a radiator cleaner and fuel tank residue cleaner, the ThoroFlush flushes every impurity from wherever in your vehicle they may be lurking!
Liqui Moly 2051 Radiator Cleaner – 300 ml

The 10 ounce Liqui Moly 2051 is a radiator cleaner that protects and cleans your vehicles entire cooling system. It functions by dissolving any existing contaminated oil and lime or harmful acids built up inside your radiator.
It’s compatible with metal, plastic, and rubber, so, it works with just about any radiator type there is.
It is famed for dispersing icky sludge that causes higher heat levels in your vehicle. Its composition does not include any aggressive acids or alkalis, and as such, it is compatible with all antifreeze types. This modern mixture is also very easy to use.
BlueDevil Radiator Flush 00204

The BlueDevil Radiator Flush is 32 Ounces of pure concentrated formula that promises you advanced radiator cleaning, cooling, and ultimately improved engine performance. Specially formulated for high mileage vehicles, if effectively removes rust, grime, and grease that build up and occur after long use.
Its incredible flush features ensure that your coolant levels do not drop for several months after a single use.
The BlueDevil restores efficiency to vehicles and effectively extends your vehicle life by improving its performance. Its advanced cleaning power is great at deep flushes and is sure to keep you happily on the road for longer!
Gunk Motor Medic C1412 10-Minute Radiator Flush

The Gunk Motor Medic is an 11-ounce wonder-worker. As indicative of in its name, it works in ten minutes, tops. But, it’s what it gets done within that short period that is truly amazing.
This one step “Medic” quickly removes grease, scum, rust and scale deposits from your radiator. It requires no neutralizer and contains no acids which make it compatible with all radiator types (cast iron, aluminum, plastic or rubber) and with both diesel and petrol engines.
The Motor Medic team sure put their almost eight decades of experience into this product. Busy schedule? No problem, the “Medic” will save your vehicle and your time!
Design Engineering 040200 Radiator Relief Coolant Additive

The 16-ounce Design Engineering 040200 is designed to offer radiator relief to all water cooled engines. It is compatible with all types of antifreeze mixtures. While also compatible with a water mixture, it does not require any pre-mixing before usage.
Just adding this additive to your cooling system, you are sure to reduce your engine operating temperature immediately (up to 30 degrees Fahrenheit). It is safe for use alongside alloys as it is 100 percent biodegradable. It also contains no toxic additives.
This is one of the few radiator fluids that maintain a stable pH level within your radiator. By maintaining a steady acceptable level at all times, you are sure to get better performance for longer.
Even better, the 040200 is formulated with a corrosion inhibitor. Also, in its composition is a pre-existing scale remover which guarantees you proper temperature levels and a longer engine life!
Bar’s Leaks 1211 10 Minute Flush

The Bar’s Leaks 1211 is a 12-ounce fluid that promises you an instant radiator turn around in as little as ten minutes. This product promises to quickly give your car the boost it needs to keep you and your car on the road.
This radiator cleaning solution works by removing grime and grease as well as scale and mineral deposits in your radiator and all corresponding cooling system connectors.
This overall gunk remover is compatible with all radiator types as it contains no harmful acids that limit its use with any system, even aluminum.
This fast-acting formula requires no neutralizing or pre-mixing beforehand, which makes it easy to use, and hence, saving you further time!
Permatex 80030 Heavy Duty Radiator Cleaner

The Permatex 80030 is a 32-ounce heavy duty radiator cleaner. It functions as an all-rounder by cleaning not just your radiator, but its water jackets as well. It’s also quite effective at cleaning and unclogging boiler tubes and steam cleaner coils.
The 80030 offers an industrial maintenance to its approach by diligently removing all rust and scale deposits from your vehicles radiator, engine and as mentioned, water jackets. This is vital in reducing your engines running temperatures and hence extending its life.
If you are own a heavy duty automobile, then this radiator cleaner is for you!