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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
    Oil flush
    By  JEFF,  a  Verified Buyer  on  January 07, 2022

    Describe the issue

    Great product
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Magic
    By  JUSTIN,  a  Verified Buyer  from  Ohio  on  January 06, 2022

    Describe the issue

    I was having a oil pressure light come in at low idle. Dealership said it was likely due to a sludge build up. After being told by a dealership it would take $1200 to treat with there product, I did my homework and tried AMSOIL Engine Flush. 15 minutes idle with the product as directed, and I have have no issues in months.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Great engine flush
    By  DOUG,  a  Verified Buyer  from  Ont. Canada  on  January 06, 2022

    Describe the issue

    My 2010 Denali with the 6.2 L engine had the infamous tapping (sticking lifter) noise. The oil was new when I received the Amsoil engine and trans flush. I put it in and the new oil came out the colour of tar. After new oil and filter the tapping was a lot less. Ran it for 10,000 kil. and did a (2)second flush and again it came out black. Did the oil/filter change started it up and NO tapping. Great result I didn't expect.
    Bottom Line
    Yes, I would recommend this to a friend.
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  • 5
    Makes draining easier
    By  Los,  a  Verified Buyer  from  CA  on  January 03, 2022

    Describe the issue

    I used it for 3 oil changes on my VW and Toyota. It makes life much easier by loosening up thick deposits. The oil drains out so much faster and cleaner with the added benefit of keeping the engine clean. Don't skimp out of oil, transmission fluid, and coolant.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Makes a difference
    By  PHILIP,  a  Verified Buyer  from  Hays ks  on  December 26, 2021

    Describe the issue

    Amazing how much crap this stuff cleans out of your engine!!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Great product
    By  GABRIEL,  a  Verified Buyer  from  Darien,IL   on  December 25, 2021

    Describe the issue

    I'm using this product always on my cars, and customer's too!!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Engine Flush: Time will tell
    By  PAUL,  a  Verified Buyer  from  Evington, VA  on  December 14, 2021

    Describe the issue

    Hoping this product reduces the oil consumption problem my 2.4 liter Rav4 engine has; a design flaw in the piston oil ports being too small causes the sweeper rings to gum up, not "sweeping" the oil from the cylinder walls at each stroke., thereby burning oil. Couple that with the elimination of detergent additives in the oil we buy and you create a perfect storm for oil consumption. This Amsoil additive is safe, it contains strong detergents to dissolve sludge buildup. Hopefully this will loosen up the sweeper rings so they "sweep" oil off, and then open up the undersized oil ports around the top of the piston head. If this product is able to do this...it will save an engine rebuild. Time will tell...thanks Amsoil
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Cleaner
    By  MAURICE,  a  Verified Buyer  from  Truck  on  December 12, 2021

    Describe the issue

    Runs smoothly
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    A MUST!
    By  CODY,  a  Verified Buyer  from  TEXAS  on  December 10, 2021

    Describe the issue

    I used this in a 4.3 V6 with 200,000 miles. I could definitely tell a difference in performance after serving truck along with the other Amsoil products used. Planning to use on all my engines when servicing them and every other time from then on. In my garage it’s a Must have!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Internal Engine Cleaner
    By  LEE,  a  Verified Buyer  from  Zionsville, IN  on  December 07, 2021

    Describe the issue

    I have a customer with an 2012 Honda Pilot. While adjusting the valves the front head was covered in sludge and oil and carbon residue. The VVTI system was not working properly due to this. I added a bottle of the Amsoil engine cleaner and ran the engine for 20 minutes. After removing the oil and changing the filter the DTC for number 5 cylinder went away. We are scheduled to repeat the process in 5K miles.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?