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Engine and Transmission Flush

Product code : FLSHCN-EA

Prepares Engines and Transmissions For New Oil

Engineered for both gasoline and diesel engines and automatic transmissions. Helps improve operating efficiency, increase fuel economy and reduce emissions.
Engineered for both gasoline and diesel engines and automatic transmissions. Helps improve operating efficiency, increase fuel economy and reduce emissions.

Engine and Transmission Flush



AMSOIL Engine and Transmission Flush (FLSH) helps restore fuel economy, increase operating efficiency and reduce emissions in gasoline and diesel engines, and automatic transmissions. Its potent, detergent-based formula cleans sludge and deposit build-up, promoting reduced oil consumption. AMSOIL Engine and Transmission Flush is safe on parts and can be easily disposed of with waste oil.

Restores Vehicles to Like-New
New engines and transmissions run more efficiently, but over time they gather harmful deposits that cause power and performance loss. Stop-and-go driving, prolonged idling, short trips that do not allow the engine to reach full operating temperature, towing, the ingestion of air-borne dirt, fuel dilution, water condensation and oxidized oil all can promote sludge build-up in motor oil and transmission fluid. As it settles, sludge clogs narrow oil passages, restricting oil flow to vital parts, especially the upper valve train area.

In transmissions, deposits can form on clutch plates, causing hesitation and erratic shifting. Ultimately clutch glazing can set in, reducing the life of the transmission. Deposits in engines and transmissions can accelerate wear, causing power loss and increased fuel consumption.

  • Prepares engines and transmissions for new oil
  • Removes deposits and sludge for improved efficiency, fuel economy and lower emissions
  • Prolongs equipment life
  • Detergent-based formula is environmentally friendly
  • Compatible with seals and gaskets
  • One-treatment results
  • Easily disposed of with waste oil

AMSOIL Engine and Transmission Flush Benefits
Unlike many flush products, AMSOIL Engine and Transmission Flush features a multi-use formulation that dissolves and disperses sludge, varnish and deposits in both engines and automatic transmissions. Due to its detergent-based formulation, it can be easily disposed of with waste oil, making it more user-friendly. Its advanced formula of light base oil technology, powerful detergents and dispersants provides safe cleaning action. AMSOIL Engine and Transmission Flush is compatible with both petroleum and synthetic oils, preparing poorly maintained equipment for installation of new oil. It represents the first step toward restoring neglected equipment to top-notch performance. AMSOIL Engine and Transmission Flush provides the following benefits in only one treatment:

Gasoline and Diesel Engines

  • Helps loosen sticky valves and rings, minimizing blow-by and reducing emissions
  • Helps quiet lifter noise
  • Promotes lower operating temperatures through sludge removal
  • Easy disposal

Automatic Transmissions

  • Cleans deposits in oil cooler and ports
  • Helps unclog fluid passages
  • Cleans deposits and varnish from clutch plates, helping improve efficiency
  • Promotes smoother operation and transmission life through reduced shift delay

Applications
AMSOIL Engine and Transmission Flush is recommended for diesel and gasoline engines, and automatic transmissions. Do not use it in differentials.

Directions for Use
Though it works in one treatment, AMSOIL Engine and Transmission Flush is safe enough to be used at every oil change. If using a flushing machine, follow the manufacturer's recommendation. Otherwise, use the following guidelines:

Engine: Add entire bottle of AMSOIL Engine and Transmission Flush to engine oil fill port. Idle the engine for 10-15 minutes, then immediately drain the oil. Ensure enough time for the system to completely
drain. Remove and replace the engine oil filter. Refill engine with new engine oil in the viscosity grade recommended by the manufacturer.

Transmission: Engage emergency brake. Add entire bottle of AMSOIL Engine and Transmission Flush to transmission oil fill port. Idle for 10-15 minutes; shift through drive and reverse. Do NOT place vehicle under heavy load. Drain entire transmission and torque converter of fluid. FILTER MUST BE CHANGED prior to refilling with new transmission fluid.

NOTE: It is not recommended to flush transmissions that do not have a removable pan or access to the transmission filter.

Automatic transmission clutch plates pre-cleanup.
(above) Automatic transmission clutch plates pre-cleanup. Varnish and glazing is heavy on some of the plates.
Automatic transmission clutch plates after cleanup.
(above) Automatic transmission clutch plates after cleanup with AMSOIL Engine and Transmission Flush reveal lighter glazing and varnish.
Cylinder head pre-cleanup.
(above) Cylinder head pre-cleanup. Note the sludge deposits on and around the valve springs and push rod openings.
Cylinder head after cleanup with AMSOIL Engine and Transmission Flush.
(above) Cylinder head after cleanup with AMSOIL Engine and Transmission Flush. The valve springs and push rod openings are noticeably cleaner, with fewer sludge deposits. The manufacturer's stamping is more easily seen.

Engine and Transmission Flush



Engine and Transmission Flush

  • 5 star rating
    Works great.
    By  JEFFERSON,  a  Verified Buyer  on  July 15, 2022
    I flush at every oil change. Honestly. Just try it. Truly the best brand on the planet.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Great
    By  HARRY,  a  Verified Buyer  on  July 14, 2022
    Wonderful
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Good solution for sludged engine.
    By  ERIC,  a  Verified Buyer  from  Oakland, California  on  July 10, 2022
    One time use worked to eliminate a lot of sludge, after I physically cleaned most of the heaviest deposits. Good choice to start using Amsoil Synthetic Oils. Then the formula's will clean every oil change.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    engine flush
    By  GARY,  a  Verified Buyer  from  engine  on  July 09, 2022
    Makes good sense to clean up before changing oil.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Awesome
    By  Jason,  a  Verified Buyer  from  WI  on  June 30, 2022
    Used on my car and gets better mileage
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Flush
    By  MIKE,  a  Verified Buyer  from  Montague ca  on  June 19, 2022
    Does a very good job on cleaning internals of the engine
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Get rid of junk and build up.
    By  Tracy,  a  Verified Buyer  from  Kentucky  on  June 06, 2022
    I use Amsoil Engine and Transmission flush on every vehicle I have, used or new. The latest vehicle I used this on was a 2016 Chevrolet Cruze LT. After warming the engine and letting the "flush" do its job, I removed the oil drain plug, and clumps of matter were literally dropping out of the oil pan. You never know how a used vehicle was maintained by previous owners prior to you purchasing it. You expect there may be some issues that you will encounter along the way, but your engine and transmission are the life of your vehicle. Using Amsoil engine and transmission flush along with Amsoil signature series motor oil gives me the best odds of maintaining the engine from this point forward and getting many years of service out of the vehicle.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 4 star rating
    First time user
    By  JAMES,  a  Verified Buyer  from  Washington  on  May 26, 2022
    New to AmsOil and my rep recommended I use this before draining old oil for first round of AmsOil. Followed the directions and feel it did what it said it would.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    Usage directions are wrong
    By  THOMAS,  a  Verified Buyer  from  Selma,Alabama  on  May 22, 2022
    Directions say to also use in transmissions. This cannot be right because only about a third of transmission fluid will drain because the other two thirds is still in the torque converter and valve body. Years ago, there was a 1/4 pipe plug in the torque converter that allowed it to be drained, but not in late model cars. This can only alter the viscosity and fluid characteristics of the undrained fluid.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5 star rating
    engine oil flush
    By  PETER,  a  Verified Buyer  from  ancaster, ontario  on  May 21, 2022
    This is an outstanding engine oil flush, and works extremely well on higher mileage engines removing deposits and freeing up sticking rings and cleaning oil passages. Using it now regularly for best engine performance!
    Bottom Line
    Yes, I would recommend this to a friend.
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