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Prestone AS105 Total Cooling System Cleaner for Radiator, Heater Core, and Hoses, 22 oz., 6 Pack

4.6 4.6 out of 5 stars 2,233 ratings

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22 Fl Oz (Pack of 6)
Brand Prestone
Item Form Liquid
Specific Uses For Product Engine,Heater
Item Volume 650 Milliliters
Unit Count 132.0 Fl Oz

About this item

  • 2-in-1 formula designed for light flushing and heavy-duty cleaning
  • Cleans cooling systems to help prevent overheating
  • Non-toxic, non-acidic formula is easy-to-use and safe for all cooling system metals
  • Effectively removes heavy deposits by drawing metal oxides into the solution
  • Strong enough to help restore maximum cooling system efficiency
See more product details

Product Description

Prestone Radiator Flush and Cleaner is a 2-in-1 formula designed for light flushing and heavy-duty cleaning for cooling systems to help prevent overheating, the #1 cause of engine failure. This premium formulation is designed to remove heavy rust and scale deposits in neglected cooling systems. These deposits can dramatically restrict coolant flow and reduce heat transfer, which may lead to possible overheating, breakdown, or costly repair. A super-chelating additive effectively removes heavy deposits by drawing metal oxides into the solution. Though strong enough to help restore maximum cooling system efficiency, this non-toxic, non-acidic product is easy-to-use and safe for all cooling system metals.

Product information

Technical Details

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Warranty & Support

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Prestone

Prestone AS105 Total Cooling System Cleaner for Radiator, Heater Core, and Hoses, 22 oz., 6 Pack


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What's in the box

  • Coolant Flush (6 Pack)
  • Looking for specific info?

    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    2,233 global ratings

    Customers say

    Customers like the quality, value, ease of use, and heat transfer of the cooling system cleaner. They mention that it works well, is inexpensive, and easy to use. Some appreciate the clear instructions on the bottle. Overall, most are happy with their purchase and recommend it to others.

    AI-generated from the text of customer reviews

    86 customers mention76 positive10 negative

    Customers like the quality of the cleaning agent. For example, they say it does a decent job, works like gangbusters, and is an inexpensive and effective option. Some mention that it works well on cooling systems and that it helps clean and flush the system out.

    "It works to clean out clogged systems." Read more

    "Very easy to use. Amazing results! Heat system never worked this good. Overall cost , about twelve dollars!" Read more

    "Works Great" Read more

    "...But this stuff works good. Cleaned all the grime out and actually had clear water running out. So yes it works!" Read more

    15 customers mention15 positive0 negative

    Customers appreciate the value of the cleaning agent. They mention that it's very inexpensive and provides the best combination of price and quality.

    "Once again Amazon.com produces the best combination of price and quality for my purchase. Fast delivery makes it all easy for me" Read more

    "...This is an inexpensive and effective option if your radiator isn’t leaking." Read more

    "This arrived fast. It came well packaged and it was incredible what a low cost it was compared to all other stires, including online sites...." Read more

    "Cheap price, aggressive results...." Read more

    11 customers mention11 positive0 negative

    Customers find the cleaning agent super easy to use and appreciate the clear instructions on the bottle.

    "Very easy to use. Amazing results! Heat system never worked this good. Overall cost , about twelve dollars!" Read more

    "Easy to use, recommend to drive your car more than 3 hours to get the best results." Read more

    "Easy to use" Read more

    "It cleaned my cooling system and was easy to use." Read more

    5 customers mention5 positive0 negative

    Customers like the heat transfer of the cleaning agent. They say it makes their engine run cooler, and keeps their car's temperature in check. Customers also mention that the cooling system is now clean as a whistle, and the coolant is nice and clear.

    "...So you know, do it right. Flush the system. Better heat transfer, is a hotter heater in winter time, less problems otherwise." Read more

    "...My coolant has been nice and clear since - no rust or gunk...." Read more

    "Using this product to clean my cooling system has made my engine run cooler, especially while using the air conditioner." Read more

    "...every couple of years, it's inexpensive, really easy, and keeps your cars temp in check...." Read more

    5 customers mention0 positive5 negative

    Customers are dissatisfied with the leaking of the cleaning agent. They say it may have caused their radiator to start leaking, the water pump seal to start leak, and a coolant leak from the heater core. Some customers also mention that the product did something to the shaft seal, so now they have a small leak.

    "My radiator trans cooler inside started leaking and my entire cooling system was trashed with transmission fluid...." Read more

    "...It wasn't gas she smelled, but a coolant leak from the heater core...." Read more

    "...This stuff did something to the shaft seal so now I have a small leak. Have to replace water pump to fix. On my car that is going to be money thing...." Read more

    "...Nothing came out except water (no amount of visible sediments when tested in a trasparent cup). But maybe honda coolant protection was great...." Read more

    Appears to be great stuff!
    5 Stars
    Appears to be great stuff!
    The crud that came out of that truck, wow. Unfortunately I cannot tell you if it was because of this because I can't go back in time and flush it without it, but it was nice to know that it may have helped and it wasn't that expensive. I threw it in a few days before with mostly water and it looks like it could have helped. I would recommend it to a friend.
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    Top reviews from the United States

    Reviewed in the United States on March 20, 2024
    Size: 1.03 Gallon (Pack of 1)Verified Purchase
    Reviewed in the United States on January 29, 2024
    Size: 1.03 Gallon (Pack of 1)Verified Purchase
    2 people found this helpful
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    Reviewed in the United States on March 7, 2024
    Size: 1.03 Gallon (Pack of 1)Verified Purchase
    One person found this helpful
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    Reviewed in the United States on October 14, 2023
    Size: 1.03 Gallon (Pack of 1)Verified Purchase
    Reviewed in the United States on January 6, 2024
    Size: 1.03 Gallon (Pack of 1)Verified Purchase
    One person found this helpful
    Report
    Reviewed in the United States on September 17, 2023
    Size: 1.03 Gallon (Pack of 1)Verified Purchase
    4 people found this helpful
    Report
    Reviewed in the United States on June 30, 2023
    Size: 1.03 Gallon (Pack of 1)Verified Purchase
    Reviewed in the United States on December 25, 2022
    Size: 1.03 Gallon (Pack of 1)Verified Purchase
    9 people found this helpful
    Report

    Top reviews from other countries

    Translate all reviews to English
    Remy Brassard
    5.0 out of 5 stars C’est arrivé rapidement
    Reviewed in Canada on February 25, 2024
    Size: 1.03 Gallon (Pack of 1)Verified Purchase
    Elias G.
    5.0 out of 5 stars Cleans a clean system
    Reviewed in Australia on December 1, 2023
    Size: 1.03 Gallon (Pack of 1)Verified Purchase
    Nayan Parmar
    5.0 out of 5 stars One of the best product
    Reviewed in India on August 17, 2016
    Size: 1.03 Gallon (Pack of 1)Verified Purchase
    Amazon Customer
    5.0 out of 5 stars Prestone
    Reviewed in Canada on February 21, 2024
    Size: 1.03 Gallon (Pack of 1)Verified Purchase
    Cameron
    5.0 out of 5 stars Perfect for my needs
    Reviewed in Australia on May 6, 2023
    Size: 1.03 Gallon (Pack of 1)Verified Purchase