CarCareTruth Score
Decent.
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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 aspiration toxicity — thin, oily liquids can slip into the lungs if swallowed, causing chemical pneumonia.
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
“No H319 or H318 in SDS §2. Aerosol mist can reach eyes during overhead spraying; safety glasses are appropriate in that scenario.”
— WD-40
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
“No H315 or H317 in SDS §2 mixture classification. Brief contact carries minimal risk; wash skin after handling.”
— WD-40
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
“H304 aspiration toxicity Cat 1 confirmed in SDS §2 mixture classification. Aerosol delivery creates fine petroleum-distillate mist · the H304 classification and aerosol form factor place lungs at recommended. Use in a ventilated garage or outdoors.”
— WD-40
U.S. regulatory standard
29 CFR 1910.1200(f); 1910.132(d)
“The employer shall assess the workplace to determine if hazards are present, or are likely to be present, which necessitate the use of personal protective equipment.”
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.
This product ranks #2 of 8 in White Lithium Grease.
Last reviewed June 14, 2026
TL;DR Community confirms 3·5 months on door hinges and garage tracks before squeaking returns · solid for an aerosol grease. Smart Straw reaches tight hinge pins, though it doesn't lock. DANGER signal word: aspiration hazard from the aerosol petroleum carrier · use in a ventilated garage or outdoors.
Sprays on as a liquid, sets into a thick white film that stays on vertical surfaces. Point the straw into a hinge pin or track channel, spray a short burst, cycle the mechanism, wipe excess. Community confirms 3·5 months before noise returns on exterior door hinges; holds under spring-loaded garage track loads. Rated 0°F to 300°F · northern-climate owners confirm it doesn't stiffen in a cold garage.
The right call for garage door tracks, exterior door hinges, hood and trunk latches · metal-on-metal contact that cycles under load. Skip it for rubber seals, weatherstripping, and most plastics; white lithium grease can degrade certain polymers. Use dielectric grease for electrical connections and silicone spray for rubber and plastic surfaces.
DANGER signal word from an aspiration toxicity classification · the petroleum-distillate aerosol mist can reach the airway. The H304 aspiration-hazard ceiling caps health at 5.0/10. Lungs-recommended: use in an open garage or outdoors. Wear safety glasses when spraying overhead; gloves for extended sessions. No California Prop 65 warning required per SDS §15. VOC ~217 g/L including propellant; CARB compliant. Environment 6.75/10 · stay-on-car pattern limits exposure, but the petroleum base is not biodegradable.
The Safety Data Sheet for WD-40 Specialist White Lithium Grease Spray, 10 OZ carries a DANGER signal word, with classified hazards including H222 (extremely flammable aerosol); H229 (pressurized container: may burst if heated); H280 (contains gas under pressure; may explode if heated). See the PPE breakdown above for use-case-specific guidance translated from the SDS hazard codes.
CarCareTruth scores WD-40 Specialist White Lithium Grease Spray, 10 OZ at 6.6 out of 10 on the composite CCT score, with a health sub-score of 5.0/10. 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.
Per the Safety Data Sheet ingredient disclosure: SDS §3 (2019-06-05): LVP Petroleum Solvents (CAS 64742-47-8) 45·65%; Propane (CAS 74-98-6) ~25%; Hydrotreated Heavy Naphthenic Distillate (CAS 64742-52-5) <6%; Calcium Sulfonate Complex <5%; Titanium Dioxide (CAS 13463-67-7) <3%.
Marketing copy from WD-40, via Amazon. Not editorial.
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