Amsoil Authorized Dealer
Brian Klinkner
AMSOIL Authorized Dealer Missouri
Brian Klinkner
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AMSOIL Engine and Transmission Flush

AMSOIL Engine and Transmission Flush
AMSOIL Engine and Transmission Flush
Product Details
Engineered for both gasoline and diesel engines and automatic transmissions. Helps improve operating efficiency, increase fuel economy and reduce emissions.
Product Description
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. It is not recommended for CVT transmissions or 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 16 oz. 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 16 oz. 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.
Product Size
Code Package Size Unit of Measure Product
FLSHCN (FLSHCN-EA) 16-Oz. Each Engine & Transmission Flush
FLSHCN (FLSHCN-CA) 16-Oz. Case of 12 Engine & Transmission Flush
FLSH05 (FLSH05-EA) 5-Gallon Pail Each Engine & Transmission Flush
FLSH55 (FLSH55-EA) 55-Gallon Drum Each Engine & Transmission Flush
Technical Information
Extra Information
Can AMSOIL Engine and Transmission Flush be used in all transmissions?
AMSOIL Engine and Transmission Flush is recommended for use in automatic transmissions to promote efficient operation and fuel efficiency. It is not recommended for manual transmissions, CVT transmissions or differentials. AMSOIL recommends the transmission filter be changed when performing a flush.
Is it safe to use automatic transmission fluid as an engine flush?
Since automatic transmission fluids (ATF) contain detergents and help fight sludge, some enthusiasts add a small amount to their motor oil prior to changing oil as a way to clean accumulated deposits and dissolve sludge. ATF, however, is not formulated for use in automotive engines and shouldn’t be used to replace a traditional engine-flush or cleaning product for several reasons.

First, the detergency, or cleaning power, of ATF is much less than motor oil. ATF isn’t exposed to the same levels of combustion byproducts or contaminants as motor oil, so they are designed with much less detergency. In most cases, adding ATF to motor oil reduces cleaning power. Instead, ATFs have elevated levels of friction modifiers and other additives that help protect gears and clutches.

Second, ATF can disrupt the engine oil formulation and reduce its effectiveness. A good motor oil is a fine balance of base oils and additives designed to work together to fight wear, reduce friction, prevent deposits and slowly dissolve accumulated sludge in older engines. The cleaning power of motor oil is designed to work gradually over subsequent oil changes and not necessarily all at once. Adding a foreign substance to the oil disrupts oil chemistry and possibly negatively affects wear protection, oil life or more.

Finally, ATF can alter the viscosity of the oil, reducing wear protection.
If you want more immediate sludge removal and cleaning power, use AMSOIL Engine and Transmission Flush (FLSH). Although not a requirement prior to switching to AMSOIL synthetic motor oil, Engine and Transmission Flush is recommended to prepare engines with accumulated deposits or an unknown maintenance history for AMSOIL synthetic motor oil.
Is AMSOIL Engine and Transmission Flush compatible with seals?
Yes. AMSOIL Engine and Transmission Flush is compatible with engine and transmission seal materials. It is specially formulated to condition seals to help prevent leaks and extend seal life.
Is there a recommended procedure for changing to AMSOIL synthetic motor oil?
There are no special requirements for changing to AMSOIL synthetic motor oil. However, in older vehicles with high mileage, it may be advisable to use AMSOIL Engine and Transmission Flush first. This will ensure the engine is clean and free of accumulated contaminants that may affect the service life of AMSOIL synthetic motor oil. Installation of an AMSOIL Ea Oil Filter at every oil change is also recommended.   
Phone Orders: (800) 956-5695 - M-F 9am-5pm Central Time - Customer Referral Number: 1642716
AMSOIL DEALER - Brian Klinkner - Jefferson City, Missouri 65101
Serving Customers Nationwide