AMSOIL Engine and Transmission Flush (FLSH)
 Engine and Transmission Flush (FLSH)

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 lower operating temperatures and reduced oil consumption. AMSOIL Engine and Transmission Flush is safe on parts and can be easily disposed of with waste oil.

Package sizes include:

16-oz. Bottle
16-oz. Bottles (case of 12)
5-gallon pail
55-gallon drum

Product Code: FLSH • Brand: AMSOIL




MSDS Data Sheet

Product Details Reviews & Rating

Product 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.

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 airborne 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.

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

Installing new oil or transmission fluid into a dirty vehicle may not be enough to remove deposits and increase efficiency. The detergents and dispersants in some lubricants may not be able to handle leftover sludge and deposits, and the new lubricant soon becomes unfit for service, accelerating the formation of even more harmful deposits.

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, used AMSOIL FLSH 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 FLSH 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

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.

HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS).

Click here to view the MSDS Data Sheet for AMSOIL FLSH.

Keep out of the reach of children. Don't pollute. Return used oil to collection centers.

Did this product meet your expectations?

(click on a star to rate)
Product Name: AMSOIL Engine and Transmission Flush (FLSH)
Current Rating: 5 out of 5 stars
Total Votes: 3 vote(s)

Reviewed by Dan: space

Worked Great!

I have been looking for an engine flush that did not have complaints of doing very little. I came across AMSOIL engine and transmission flush and decided to give it a try. Followed the directions and found that the drained oil was very dirty. There is also an improvement of gas mileage.

Item Reviewed: AMSOIL Engine and Transmission Flush (FLSH)
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Reviewed by Chip: space

Outstanding engine flush

My engines and oil pans are pretty clean.
This cleaned out a dirty lifter in about 10 minutes - I ran it for 20 minutes.
This non solvent flush is detergent based and won't lower the viscosity of the fresh oil fill after draining it.
Started with a warm engine and a week old filter.
Let it drain for a good hour.
Side benefit - cleaned the passage leading to a dirty oil pressure sending unit - visually inspected.

Item Reviewed: AMSOIL Engine and Transmission Flush (FLSH)
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