AMSOIL Power Foam Upper Intake Cleaner

AMSOIL Power Foam (APF)

Amazing dual purpose product restores proper fuel flow and combustion. Often compared to Sea-Foam but ours actually foams.

Restore proper combustion and intake valve efficiency. Great for carbureted and fuel injected 2 and 4-cycle engines. (Fuel injected engines which are not of the GDI type or injectors after the valves).

Restores power and throttle response.

AMSOIL Power Foam® (APF) improves engine performance by removing gum, varnish and carbon deposits that affect power, operation, idle and fuel economy. Power Foam cleans intake valves, intake manifolds and throttle plates to keep the combustion intake system running at peak efficiency. Effective in both two- and four-stroke gasoline engines, Power Foam helps reduce engine ping and keeps carburetors and injector systems operating like new.
Major WOW factor so much this was the most “Youtubed” AMSOIL product at one point.
Check Price or Buy

Package sizes include:
18-oz. Spray Can
18-oz. Spray Can Case (12 units)

Call 800-579-0580 for competitive current price.
Or use the
online preferred customer portal if you choose to order online.

Printable Product Data Sheet for AMSOIL Engine Degreaser Intake Foam Cleaner. (for 2 and 4 cycle engines)

Vehicle Look-up: Match AMSOIL Products to your model


Power Foam is safe for fuel injectors, catalytic converters and emissions-control devices. It will not damage seals, gaskets, rubber or plastic materials commonly used in gasoline engines.

Performance Features

  • Cleans deposits from ethanol and degraded fuel
  • Removes gum and varnish
  • Maximizes horsepower
  • Restores startability
  • Helps improve fuel economy
  • Reduces pollution


  • UTVs/ATVs
  • Boats
  • Motorcycles
  • Lawn equipment
  • Tractors
  • Automobiles


  1. Protect painted surfaces and mass airflow sensors (MAF) from spray.
  2. Ensure application is in a well-ventilated area.
  3. Run engine to normal operating temperature and remove air cleaner assembly.
  4. While engine is running, spray foam directly into throttle body as fast as possible without stalling engine. It is common to have to rev the engine above idle to facilitate this process.
  5. Shut off engine and allow to sit for 10-15 minutes.
  6. Replace air cleaner.
  7. Restart engine. Repeat application of Power Foam as needed.

In extreme cases, disassemble carburetor and soak parts.


Avoid contact with hoses and exterior plastic components. To prevent the dissolving of paint, do not overspray. Clean any overspray immediately to prevent unintentional component damage. AMSOIL Power Foam is not recommended for use in diesel engines or as a general-purpose degreaser.


AMSOIL Power Foam is available in 18-ounce spray cans.


AMSOIL products are backed by a Limited Liability Warranty. For complete information visit


This product is not expected to cause health concerns when used for the intended applications and according to the recommendations in the Safety Data Sheet (SDS). An SDS is available online at or upon request at (715) 392-7101. Keep Out of Reach of Children. Recycle used oil and bottle.


Want to feel better throttle response? Try Amsoil Power Foam!

Restores Drivetrain Operation to Like New

Effective in both two-cycle and four-cycle engines, AMSOIL Power Foam eliminates engine ping and keeps carburetors and injector systems properly tuned. AMSOIL Power Foam is safe for fuel injectors, catalytic converters and emission control devices. It will not damage seals, gaskets, rubber or plastic materials commonly used in gasoline engines.

AMSOIL Power Foam contains a powerful foaming agent and special high boiling solvents that penetrate rust and grease. It cuts through rust so bolts can be loosened or tightened easily and washes clean, leaving no residue to attract dirt. Power Foam also helps reduce pollution caused by dirty, rough-running engines.

Generally one 18 ounce can will treat a bit more than one V8 engine or two 4-cylinder engines. Very effective at restoring throttle response instantly. The foaming action when sprayed into the intake evenly distributes across intake passages with the air. Keeping the idle speed as low as possible w/o stalling the engine allows the product to saturate all surface areas and valves completely.

Performance Features and Benefits:

  • Removes gum, varnish and carbon deposits
  • Suppresses engine ping
  • Cuts through rust and grease
  • Helps improves fuel economy
  • Reduces Pollution
  • Frees stuck choke mechanism
  • Lower cost than products such as Sea Foam and Gunk products

Many call this the Direct Fuel Injection Valve cleaner. Gas tank injector cleaners do not reach the valves when the vehicle has direct injection. Power Foam solves this problem. Removes carbon from the top side of the intake vales and restores performance!

I’ve been using this product regularly since 1997. From prepping cars for shows, restoring throttle response after a long day of racing, restoring performance after harsh winter warm-up idling to making engines easier to work on by removing grime from exterior.

This is the one non-oil product which sells by the case. Every family member will thank you for Power Foam!

Run engine to normal operating temperature and remove air cleaner assembly. While engine is running, spray entire can of foam directly into intake. Turn off engine and allow to sit for 5-10 minutes. Restart engine and drive to blow out deposits.

Avoid contact with hoses. To prevent the dissolving of paint, do not overspray. AMSOIL Power Foam is not recommended for use in diesel engines.

NOTE: Not to be used with vehicles that have MAF sensors. Call us for advice – There is a procedure to do do this correctly bypassing the sensor w/o the computer stalling the engine. Never spray PowerFoam into intake systems which pass through mass air flow sensors!! Call 800-579-0580 for clarification.

We are often asked how this compares to Sea Foam products. To answer that correctly with AMSOIL you do get more for your dollar but AMSOIL products are more for specific uses where as Seafoam sells a product for intake, fuel and crankcase – AMSOIL has stood by the policy that you should NEVER add any product to your motor oil then put a load on the engine.

Amsoil Power Foam is actually a Foam spray which will not contaminate other fluids in your engine. Unless of course it’s a small engine w/o a oil filter and small sump – then you would want to drain due to increased infusion of chemicles.

For intake systems only use directly into the throttle bodies or carburetors. Do not spray through plastic intake systems common to newer cars. Either spray in through the first vacuum port (ported vacuum) or remove the intake tube. If the air flow sensor prevents the engine from running then have someone only slightly open a gap in the intake hose while you spray into the intake using the attached tube. Call us for more advice or questions. We will provide a short video on this subject soon.

This is one product which should be added on to every case of oil bought as it has so many uses to a good mechanic or someone wanting to keep their engines in top operating condition. Add AMSOIL Power Foam to your purchase of our state of the art lubricants using a Preferred Customer wholesale buying account and say good by to multiple trips to the retail mark-up of the autoparts stores.

Another great application would be to restore the performance of a used vehicle you just bought. Not knowing the history of service, AMSOIL Power Foam will start returning the intake and valves to like new or better more efficient condition than they were before. We have been selling this product to various Corvair enthusiasts and some Lincoln Continental club members who often make drivers from cars which have sat for many years.

Let AMSOIL power Foam put the fuel system back to efficient flow conditions.

Other Products to prep, clean, store and protect engines:

AMsoil Engine Flush

Amsoil Fogging Spray

Metal Protector

Performance Improver Gasoline Treatment

AMSOIL Quickshot Small Engine (SEMA product of the year)

Gasoline Stabilizer

See AMSOIL Product Listings