CarCareTruth Score
Decent.
Priced as of June 6, 2026
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Prices may varyThe 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.
GHS Category 1 skin corrosion — classified as causing irreversible skin damage on contact.
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.
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.
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From the manufacturer’s Safety Data Sheet, Section 8
“SDS §2 classifies the concentrate at H314 (corrosion); the concentrate protocol waives H314 at the recommended 10:1 working solution (pH 9.0-9.5, below the corrosive threshold). At working dilution H319 (eye irritation Cat 2A) governs, which maps to recommended eye protection. Wear splash goggles when mixing or handling the concentrate.”
— McKee's 37
U.S. regulatory standard
29 CFR 1910.133(a)(1)
“The employer shall ensure that each affected employee uses appropriate eye or face protection when exposed to eye or face hazards from… liquid chemicals…”
ANSI Z87.1 (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
“SDS §2 classifies the concentrate at H314 (corrosion), but the concentrate protocol waives H314 at the recommended 10:1 working solution (pH 9.0-9.5). At working dilution the mixture is not corrosive; gloves are appropriate for prolonged or repeated contact and for concentrate handling.”
— McKee's 37
U.S. regulatory standard
29 CFR 1910.132; 1910.133; 1910.138; 1910.151(c)
“Where the eyes or body of any person may be exposed to injurious corrosive materials, suitable facilities for quick drenching or flushing of the eyes and body shall be provided within the work area for immediate emergency use.”
ANSI Z87.1 (eye/face — 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.
No PPE specified in published sources for lungs. Absence does not imply “not needed” — consult the full Safety Data Sheet.
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.
This product ranks #10 of 14 in All-Purpose Cleaner (APC).Three above it ↓
Last reviewed June 9, 2026
TL;DR McKee's 37 Hi-Intensity APC Plus is a gallon concentrate that dilutes 10:1 for general cleaning, down to 4:1 for engine-bay degreasing, giving strong per-ounce value across paint, plastic, carpet, and leather. At working dilution the chemistry is mild; SDS is from 2016 and at least one formula change is confirmed.
A strongly alkaline concentrate in a 128 oz gallon jug. The gallon stretches to about 11 gallons RTU at 10:1, or tighter for engine work (4:1) and interior (5:1). Dilute, spray, agitate, wipe or rinse. The manufacturer lists paint, rubber, plastic, carpet, leather, and glass as compatible at proper dilution; no surface-damage reports appear in community data. Community signal is thin; available reviews confirm dilution versatility as the main value. Owners report a reformulation, with some preferring the older version. Quality scores 6.7 out of 10.
High-volume enthusiasts who burn through APC fast will get the most from the gallon format and multi-ratio flexibility. Skip it if you need a current SDS or a formula confirmed stable: the 10-year-old safety data and unresolved reformulation are real gaps for professional or safety-critical applications.
Note on the 22 oz pump bottle (B07BZV2NZG): the bottle label reads 22 fl oz but the Amazon listing title says 16 fl oz. The physical bottle is 22 oz; the listing appears to carry an older size designation. Verify at checkout.
Scored at the 10:1 working solution, where the concentrate's corrosion classification no longer applies (pH drops to approximately 9.0-9.5). The mixture-level SDS §2 hazard at working concentration is eye irritation, so eye protection is recommended; gloves are worth it for prolonged contact, and goggles when mixing or handling the concentrate. No respiratory classification at mixture level. Water-based, low working-solution VOC, no aquatic toxicity codes, no Prop 65 warning. SDS revision is 2016; current hazard profile may differ.
The Safety Data Sheet for McKee's 37 Hi-Intensity APC Plus carries a DANGER signal word, with classified hazards including H314 (causes severe skin burns and eye damage); H319 (causes serious eye irritation). See the PPE breakdown above for use-case-specific guidance translated from the SDS hazard codes.
CarCareTruth scores McKee's 37 Hi-Intensity APC Plus at 6.7 out of 10 on the composite CCT score, with a health sub-score of 5.7/10. The CCT score blends real-world effectiveness, ingredient health impact pulled from the manufacturer's safety sheet, and environmental footprint against a published category rubric. See the methodology link on this page for the full scoring breakdown.
Marketing copy from McKee's 37, via Amazon. Not editorial.
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