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Prices may varySerious hazard — read before use
The manufacturer's Safety Data Sheet classifies this product with one or more GHS Category 1 health hazards — the most severe tier. The hazard statements in quotes below are the verbatim GHS language from the SDS, as required by OSHA's Hazard Communication Standard. The line under each statement translates the GHS classification into plain language.
- H318 “Causes serious eye damage.”
GHS Category 1 eye damage — classified as causing irreversible eye damage on contact.
- H350 “May cause cancer.”
GHS Category 1 carcinogenicity — classified as suspected of causing cancer with repeated or prolonged exposure.
If swallowed, inhaled, or splashed in eyes:
Call Poison Control immediately at 1-800-222-1222 (US, 24/7, free) and have the product container with you. Poison Control's standing guidance is to not induce vomiting after chemical exposure; they will direct first-aid steps based on the specific product.
About this product's hazards. This product's Safety Data Sheet uses signal word danger. Read the manufacturer's SDS and follow all safety instructions before use. CarCareTruth ratings translate the manufacturer's safety sheet. They do not replace the SDS or substitute for a hazard assessment specific to your task.
Health score is for adult use as intended, per the manufacturer's SDS. It does not model child ingestion, accidental spill cleanup, or off-label use. See the safety panel below for full hazard classification, and /disclaimer for the full editorial scope.
From the Safety Data Sheet
Full SDS ↗ (rev. 2022-02-18)GHS hazard codes are quoted from the manufacturer’s Safety Data Sheet. PPE tiers below translate those codes and the listed ingredient chemistry; they are not CarCareTruth recommendations.
EyesRequiredMfr. SDS §8 · 29 CFR 1910.133(a)(1) · GHS H318SkinRecommendedMfr. SDS §8 · 29 CFR 1910.138(a) · GHS H315LungsRequiredMfr. SDS §8 · 29 CFR 1910.1003 · GHS H350Ventilation—No PPE in published sourcesShow details for all categories ▾Hide details ▴
From the manufacturer’s Safety Data Sheet, Section 8
“H318 in SDS §2 classifies serious eye damage Cat 1 — irreversible corneal injury at the mixture level. The aerosol form factor concentrates mist at face height during overhead engine-bay spraying, making the H318 exposure pathway directly applicable to the use scenario.”
— AMSOIL
U.S. regulatory standard
29 CFR 1910.133(a)(1); 1910.151(c)
“The employer shall ensure that each affected employee uses appropriate eye or face protection when exposed to eye or face hazards from… liquid chemicals, acids or caustic liquids…”
ANSI Z87.1 (chemical splash protection — incorporated via §1910.6)
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
From the manufacturer’s Safety Data Sheet, Section 8
“H315 in SDS §2 classifies skin irritation Cat 2. SDS §8 directs impervious protective gloves for skin contact with this mixture.”
— AMSOIL
U.S. regulatory standard
29 CFR 1910.138(a)
“appropriate hand protection when employees' hands are exposed to hazards such as those from… chemicals which produce an adverse effect on the skin or eyes…”
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
From the manufacturer’s Safety Data Sheet, Section 8
“Pressurized aerosol creates fine mist droplets with deeper lung penetration than pump-spray products. The aerosol form factor triggers the hard lungs:required rule for this category regardless of H335 absence. SDS §8 directs respiratory protection in conditions of insufficient ventilation; SDS §11 lists dizziness and difficulty breathing as overexposure symptoms from inhalation. Volatile hydrocarbon and glycol-ether content supports the required tier.”
— AMSOIL
U.S. regulatory standard
29 CFR 1910.1003; substance-specific 1910.1001–1910.1052
“Each employer shall ensure that no employee is exposed [in excess of the substance-specific PEL]…”
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
No PPE specified in published sources for ventilation. Absence does not imply “not needed” — consult the full Safety Data Sheet.
PPE tiers translate the manufacturer’s SDS and U.S. regulatory standards. Not professional safety advice. How we report safety.
The Podium · Top 3 in Engine Degreaser
See the full ranking →This product ranks #8 of 9 in Engine Degreaser.Three above it ↓
CarCareTruth's Analysis
Last reviewed May 26, 2026
TL;DR Induction-system cleaner for carburetors and throttle bodies — AMSOIL's data bulletin explicitly says it is not a general engine-bay degreaser. DANGER signal word with H318 serious eye damage and H350 carcinogen classification (Cat 1B). Wear splash goggles, nitrile gloves, and a respirator.
What it is and how it performs
An 18 oz pressurized aerosol foam for induction-system cleaning — carburetors, throttle bodies, and intake passages on gasoline-engine vehicles. Spray into the intake at idle, dwell, then clear via engine operation or rinse. Amazon reviewers report resolution of idling problems and ethanol-residue buildup. The data bulletin confirms safety for fuel injectors, catalytic converters, rubber, and plastic in gasoline engines. This is a narrow RTU aerosol — no dilution, not for diesel or GDI engines, not for general engine-bay exterior degreasing.
Who should buy this — and who should skip it
The right pick for owners of carbureted or older throttle-body injection engines dealing with ethanol deposits or rough idle — and willing to gear up with respiratory and eye protection. Skip it outside induction cleaning: the manufacturer explicitly rules out diesel, GDI, and general engine-bay use. Anyone needing a multi-use aerosol for the whole engine bay should choose a purpose-built engine degreaser.
Safety and environmental impact
DANGER signal word from H318 serious eye damage (irreversible Cat-1) and H350 carcinogenicity (Cat-1B). The Prop 65 warning is chemistry-based: SDS §15 identifies a polycyclic aromatic hydrocarbon as the listed California carcinogen — the Amazon listing omits the badge but the SDS is authoritative. Pressurized aerosol mist penetrates airways more deeply than pump-spray; SDS §8 directs respiratory protection when ventilation is insufficient. H412 chronic aquatic toxicity from the glycol-ether solvent system and estimated high-VOC content make this a drain-destined formula with notable environmental concerns.
Frequently asked questions
Is AMSOIL Power Foam a general engine-bay degreaser?▾
No. The manufacturer data bulletin explicitly states: 'Power Foam is not recommended for use in diesel engines, GDI engines or as a general-purpose degreaser.' It is designed for carburetor and induction-system cleaning — throttle body deposits, intake valves, and carburetor passages. For general engine-bay exterior cleaning, a purpose-built engine degreaser is the appropriate choice.
Why does this product carry a Prop 65 warning?▾
SDS §15 explicitly identifies naphthalene (CAS 91-20-3) as a California Prop 65 listed carcinogen present in the formula at 1–<5%. The Amazon product listing does not display the Prop 65 badge — but the SDS §15 regulatory section is authoritative. The product also carries H350 (carcinogenicity Cat 1B) at the mixture level in SDS §2.
Is this safe for fuel injectors and catalytic converters?▾
Yes — the manufacturer data bulletin states: '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.' This is an explicit manufacturer technical claim from the product data bulletin, not generic marketing language.
What PPE does the SDS require for this product?▾
H318 serious eye damage classification means splash goggles or safety goggles are required per SDS §8. H315 skin irritation means impervious gloves are directed. The pressurized aerosol form factor triggers the lungs:required tier — SDS §8 directs respiratory protection in conditions of insufficient ventilation, and SDS §11 lists dizziness and difficulty breathing as inhalation overexposure symptoms.
Why is this product currently unavailable on Amazon?▾
The Rainforest cache from May 2026 shows 'Currently unavailable' for ASIN B0089NWQKC. AMSOIL sells its products primarily through its dealer network and the AMSOIL online store. The Amazon listing may reflect periodic stock gaps rather than permanent discontinuation.
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Manufacturer specifications
- Package Dimensions
- 9.3 x 2.8 x 2.6 inches; 1.4 Pounds
- Item model number
- APF
- Date First Available
- June 7, 2012
- ASIN
- B0089NWQKC
- Item Form
- Foam
- Specific Uses For Product
- Engine
- Contains Liquid Contents?
- Yes
- Item Volume
- 18 Fluid Ounces
- Number of Items
- 1
- Brand Name
- Amsoil
- UPC
- 097012043002
- Model Number
- APF
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Top Amazon review
↗External — Amazon's most-helpful review for context.
Awesome product
Fixed my idling issues with my 03 Envoy in 10 minutes if using power foam. It breaks up the crud the inferior ethanol leaves in the engine. Since we're forced to put that garbage ethenol in our tanks, power foam is a must have.