Top Automotive Engine and System Flushes

The best Flushes includes Liqui Moly Engine Flush (500 ml), Sea Foam Marine Fuel Treatment [20 oz], BlueDevil Radiator Flush & Oil Degreaser and many others as mentioned below.

1

Liqui Moly Engine Flush (500 ml)

  • Effectively cleans gasoline and diesel engine oil systems.
  • Gentle and fast cleaning process for optimal performance.
  • Neutral to seals and engine materials for safety.
  • Compatible with catalytic converters for enhanced efficiency.
  • Easy to use for convenient engine maintenance.
  • Recommended for regular engine health and longevity.
  • 500 ml size suitable for multiple uses.
  • Average Rating out of 5:
  • Price Range: $16.60
2

Sea Foam Marine Fuel Treatment [20 oz]

  • Improves marine engine performance and longevity.
  • Cleans fuel injectors and carburetor jets effectively.
  • Reduces long-term engine wear and tear.
  • Prevents corrosion from ethanol and water exposure.
  • Stabilizes fuel in the tank for two years.
  • Safe for all 2- and 4-stroke engines.
  • Enhances lubrication in critical upper engine areas.
  • Average Rating out of 5:
  • Price Range: $12.33
3

BlueDevil Radiator Flush & Oil Degreaser

  • High performance radiator flush and oil degreaser.
  • Deep cleaning power for optimal vehicle performance.
  • Effectively removes rust and contaminants.
  • Restores vehicle efficiency and longevity.
  • Easy-to-follow instructions included on packaging.
  • Made in the USA with quality ingredients.
  • Suitable for all vehicle types and engines.
  • Average Rating out of 5:
  • Price Range: $11.99
4

TSI Supercool High-Temp A/C Flush [32 oz]

  • High-temp A/C flush for efficient cleaning.
  • 32 fl. oz. size for multiple applications.
  • Flash point greater than 250°F for safety.
  • Compatible with R134a, HFO-1234yf, and R12 lubricants.
  • Made in the USA for quality assurance.
  • Ideal for auto and truck maintenance needs.
  • Helps maintain optimal A/C system performance.
  • Average Rating out of 5:
  • Price Range: $16.74
  • Material: Polytetrafluoroethylene
5

XADO Engine Oil System Cleaner (250ml)

  • Deep cleans engine oil systems effectively.
  • Removes sludge, deposits, and harmful contaminants.
  • Compatible with all engine types.
  • Protects engine with revitalizing barrier.
  • Simple to use before oil change.
  • Trusted brand with over 20 years experience.
  • Proven results and satisfied customer feedback.
  • Average Rating out of 5:
  • Price Range: $22.99
6

BlueDevil Radiator Flush (1 Quart)

  • Extends vehicle lifespan with effective cleaning.
  • Advanced formula targets tough radiator deposits.
  • Concentrated solution for maximum cleaning power.
  • Improves engine performance and efficiency.
  • Helps prevent overheating and corrosion issues.
  • Easy to use for all vehicles.
  • 1 quart size perfect for multiple applications.
  • Average Rating out of 5:
  • Price Range: $11.25
7

Irontite Thoro-Flush Coolant Cleaner [16oz]

  • Effectively removes rust, scale, grease, and sludge.
  • Restores optimal coolant flow for engine efficiency.
  • Cleans gelled Dex-Cool antifreeze effectively.
  • Safe for cast iron, aluminum, brass, and plastic.
  • Prevents overheating and cooling system blockages.
  • Easy-to-use powder formula for quick application.
  • Treats up to 6-gallon cooling systems efficiently.
  • Average Rating out of 5:
  • Price Range: $21.19
8

Liqui Moly Jectron Fuel Injector Cleaner (2pk)

  • Reduces fuel consumption for better efficiency.
  • Enhances combustion for cleaner engine performance.
  • Improves engine idling for smoother operation.
  • Boosts throttle response for better acceleration.
  • Compatible with all gasoline engines.
  • Easy to use for quick application.
  • Helps prevent injector clogging and deposits.
  • Average Rating out of 5:
  • Price Range: $15.93
9

BlueDevil Motor Flush [1 Quart]

  • Effectively removes sludge and varnish buildup.
  • Frees sticky valves and lifters efficiently.
  • Enhances overall engine performance significantly.
  • Easy to use for all motor types.
  • Non-toxic formula safe for vehicles.
  • Compatible with gasoline and diesel engines.
  • Restores engine cleanliness and longevity.
  • Average Rating out of 5:
  • Price Range: $9.99
10

Liqui Moly Diesel Particulate Filter Fluid [16.91 oz]

  • Dissolves contamination in diesel particulate filters.
  • Improves vehicle performance and efficiency.
  • Compatible with passenger and commercial diesel vehicles.
  • Enhances performance for Cummins and Drama engines.
  • Reduces fuel consumption and saves money.
  • Restores optimal driving characteristics.
  • Convenient 16.91-ounce liquid size.
  • Average Rating out of 5:
  • Price Range: $24.99
11

Lubegard Kooler Kleen Transmission Flush [13.25 oz]

  • Compatible with all transmission types.
  • Effectively removes grease and dirt buildup.
  • Eliminates sludge and metal shavings.
  • Prevents pollutants in new transmissions.
  • Safe for new transmission fluid.
  • Contains no harmful CFCs.
  • Includes a convenient 2-in-1 fitting.
  • Average Rating out of 5:
  • Price Range: $8.38
12

Sea Foam Trans Tune Fluid Treatment [16 oz]

  • Enhances fluid system performance and longevity.
  • Compatible with automatic, hydraulic, and power steering fluids.
  • Safe for both conventional and synthetic fluids.
  • Dissolves harmful gum and varnish buildup effectively.
  • Cleans and lubricates critical system components.
  • Controls moisture to prevent fluid degradation.
  • Does not swell seals or damage gaskets.
  • Average Rating out of 5:
  • Price Range: $10.97
  • Color: 16 oz v2
13

FJC 2032 Flush (8 fl oz)

  • Compatible with various oil types.
  • Removes moisture and contaminants effectively.
  • 100% biodegradable and non-toxic formula.
  • Stops and inhibits corrosion from moisture.
  • Neutralizes existing acids in the system.
  • Enhances flow of oil and refrigerants.
  • Safe for use in A/C systems.
  • Average Rating out of 5:
  • Price Range: $17.99
14

Rislone Hy-per Cool Flush (11.5 oz)

  • Works with all cooling system materials.
  • Fast and easy to use.
  • Removes damaging cooling deposits effectively.
  • Reduces engine operating temperature for safety.
  • Complete cleaning in 30 minutes or less.
  • Neutralizes acids that cause corrosion.
  • Heavy Duty formula for thorough cleaning.
  • Average Rating out of 5:
  • Price Range: $5.97
15

Sea-Doo Flush Kit [295500068]

  • Essential for preventing engine corrosion.
  • Maximizes watercraft performance and longevity.
  • Includes all components for easy installation.
  • Compatible with non-'T' fitting watercraft.
  • OEM quality, genuine BRP Sea-Doo product.
  • Ensures hassle-free water flushing process.
  • Maintains optimal engine cooling efficiency.
  • Average Rating out of 5:
  • Price Range: $29.99
  • Material: Plastic
16

Sea Foam Trans Tune Fluid Treatment [16 oz]

  • Enhances fluid system performance and longevity.
  • Compatible with most automatic transmission fluids.
  • Dissolves harmful gum and varnish buildup.
  • Cleans and lubricates key internal components.
  • Controls moisture levels in fluid systems.
  • Safe for seals, gaskets, and O-rings.
  • Effective for conventional and synthetic fluids.
  • Average Rating out of 5:
  • Price Range: $15.75
17

Berryman Oil Change Flush [16 oz]

  • Safely cleans harmful crankcase sludge and deposits.
  • Compatible with diesel engines for versatile use.
  • Enhances oil circulation by opening restricted passages.
  • Contains no aggressive solvents for safer operation.
  • Removes water to prevent corrosion damage.
  • Detergents gently clean and suspend sludge effectively.
  • Easy to use before oil and filter changes.
  • Average Rating out of 5:
  • Price Range: $18.16
18

Motor Power Care Catalytic Converter Cleaner Kit

  • Complete kit for catalytic converter and engine maintenance.
  • Restores engine performance and fuel efficiency.
  • Effectively removes soot and carbon deposits.
  • Engine flush removes sludge and residues.
  • Boosts power by reducing varnish deposits.
  • Extends engine lifespan and restores compression.
  • Addresses P0420 and P0430 error codes.
  • Average Rating out of 5:
  • Price Range: $49.98
  • Material: Eco-Friendly
19

Atlantis Flush Kits for Yamaha Wave Runner

  • Efficiently flushes debris from your Wave Runner.
  • Compatible with Yamaha Wave Runner III models 1992-1997.
  • Removes saltwater, sand, and sediment effectively.
  • Easy installation with specific application kits.
  • Enhances engine longevity and performance.
  • Protects against corrosion and damage over time.
  • Essential maintenance tool for watercraft owners.
  • Average Rating out of 5:
  • Price Range: $32.95
20

Lubegard Performance Pack for Transmissions

  • Effectively removes harmful varnish deposits.
  • Prepares transmissions for optimal new fluid performance.
  • Protects against heat, wear, and oxidation damage.
  • Endorsed by automotive professionals and manufacturers.
  • Enhances transmission longevity and efficiency.
  • Easy-to-use formula for hassle-free application.
  • Ideal for preventive maintenance and repairs.
  • Average Rating out of 5:
  • Price Range: $17.99
21

Gunk Motor Medic 10-Minute Radiator Flush

  • Quick 10-minute radiator flush for effective cleaning.
  • Restores cooling system efficiency and performance.
  • Removes rust, scale, and debris buildup.
  • Compatible with all types of cooling systems.
  • Easy to use; just pour and flush.
  • Trusted brand with over 75 years of experience.
  • Family-owned company based in Charlotte, NC.
  • Average Rating out of 5:
  • Price Range: $7.99
22

Liqui Moly Automatic Transmission Cleaner (1L)

  • Enhances automatic transmission efficiency and performance.
  • Removes deposits and residues from ATF circuits.
  • Ensures smooth gear shifting and operation.
  • Compatible with various automatic transmission types.
  • Improves overall vehicle transmission longevity.
  • Easy-to-use 1-liter bottle for convenience.
  • Promotes optimal fluid flow within transmission systems.
  • Average Rating out of 5:
  • Price Range: $32.99
23

Wogomz Brake Fluid Tester Pen (DOT 3/4/5.1)

  • Quickly checks water content in brake fluid.
  • Five LED indicators for easy reading.
  • Green indicates good, yellow needs attention, red urgent.
  • Simple one-step testing process.
  • Durable brass-plated metal construction.
  • Water and corrosion resistant for longevity.
  • Requires AAA battery (not included).
  • Average Rating out of 5:
  • Price Range: $4.19