CarCareTruth Score
Mediocre.
Opens Amazon in a new tab. No account needed to look.
Saved to your guest loadout. Sign up to also save to your Cabinet (consumables) or Kit (tools you own).
As an Amazon Associate I earn from qualifying purchases. Full disclosure
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 eye damage — classified as causing irreversible eye damage on contact.
If 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.
Show details for all categories ▾Hide details ▴
Translated from the manufacturer’s Safety Data Sheet, Section 2
SDS Section 2 classifies the mixture as Serious Eye Damage Category 1 (H318) and Section 8 specifies safety glasses with side shields or chemical splash goggles. The Cat 1 eye damage classification is what forces the required tier; caliper bleeding and pressure bleeding produce the splash conditions the SDS protection is written for.
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.
Only when: prolonged use
Translated from the manufacturer’s Safety Data Sheet, Section 8
No skin H-code at mixture level. SDS Section 8 lists nitrile or chemical-resistant gloves for prolonged or repeated contact during a full fluid flush, which matches the situational tier trigger.
U.S. regulatory standard
29 CFR 1910.1000; 1910.1200
“Each employer shall assure that no employee is exposed [in excess of the PEL]…”
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
UN GHS hazard statement
H361“Suspected of damaging fertility or the unborn child”
UN GHS Rev. 9 (2021)
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
Only when: in enclosed space
Translated from the manufacturer’s Safety Data Sheet, Section 8
No inhalation H-codes at mixture level and SDS Section 9 reports negligible vapor pressure. Section 8 calls for general ventilation only. The situational trigger covers brake service in a fully closed garage; an open garage door is adequate for the typical home job.
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.
California Prop 65 warning
This product's Amazon listing carries a California Prop 65 warning. The manufacturer's Safety Data Sheet (§15) does not list a Prop 65 substance for this product — we show the warning for transparency and flag the discrepancy rather than silently picking a side.
Scope of these PPE tiers. The tiers on this page translate the product's Safety Data Sheet where one is published, plus its ingredient chemistry, into a comparable rating. They describe a formulation, not a situation: a tier is not a safety determination for any specific user, task, quantity, or environment. The manufacturer's label and use instructions govern how the product is handled. Where the product is used at work, the employer's PPE program and hazard assessment under 29 CFR 1910.132 decide what protection is selected, not this page.
No warranties. CarCareTruth makes no warranties, express or implied, and expressly disclaims the implied warranties of merchantability and fitness for a particular purpose.
This product ranks #13 of 13 in Brake Fluid.Three above it ↓
Last reviewed August 1, 2026
TL;DR DOT 4 with label-claimed boiling points of 500°F dry and 311°F wet (the wet figure sits exactly at the FMVSS 116 floor), neither TDS-documented, so this scores as commodity DOT 4 against TDS-backed competitors. The SDS carries DANGER for H318 (serious eye damage) and H361, so wear safety glasses or goggles during any pour or bleed.
Liqui Moly's standard DOT 4 brake fluid is a glycol-ether-based, non-silicone fluid certified to FMVSS 116, ISO 4925 Class 3/4, and SAE J 1703/1704 · the right chemistry class for any ABS, ESC, or traction-control vehicle. The back-of-bottle label claims >500°F dry and >311°F wet boiling points. Liqui Moly's published technical information sheet lists only the DOT 4 standard minimums (≥230°C / ≥155°C), not a per-product tested figure for Art. 20154, so neither boiling point is TDS-documented. The dry margin works out to roughly +54°F over the DOT 4 floor, but the wet figure sits at the spec minimum rather than above it.
Reasonable for a stock daily driver where the OEM specifies DOT 4 and the fluid sees normal highway service. Skip for track use or tow-vehicle work where headroom on the wet boiling point matters · ATE TYP 200 or Motul RBF 600 document real margin above the FMVSS floor. Also skip if the vehicle calls for a low-viscosity DOT 4 for the ABS or ESP module; Liqui Moly's SL6 DOT 4 (Art. 22389) is the matching part.
The SDS classifies this fluid as DANGER from two mixture-level codes: H318 (causes serious eye damage, Cat 1) and H361 (suspected of damaging fertility or the unborn child, Cat 2). SDS Section 8 specifies safety glasses or splash goggles plus nitrile gloves; the H318 classification means splash to the eyes can cause permanent injury, not just irritation. Glycol-ether brake fluid has a mild sweet taste that attracts pets and children, so keep the bottle sealed and out of reach. Spent fluid goes to a hazardous-waste collection site.
The back-of-bottle label claims a dry boiling point above 500°F (260°C) and a wet boiling point above 311°F (155°C). The FMVSS 116 DOT 4 minimums are 446°F dry and 311°F wet. So the dry figure is roughly 54°F above the floor, but the wet figure sits exactly at the spec minimum and isn't above it. These are label claims; the Liqui Moly Technical Information sheet for the DOT 4 product family lists only the DOT 4 standard minimums (≥230°C / ≥155°C) without a product-specific TDS table for Art. 20154. None of the figures are independently third-party verified, which is why both boiling-point quality dimensions score conservatively.
Two codes drive it: H318 (Causes serious eye damage, Cat 1) and H361 (Suspected of damaging fertility or the unborn child, Cat 2). The H318 alone is enough to force DANGER under GHS classification rules. Most commodity DOT 3/4 fluids carry H319 (eye irritation, Cat 2) which is WARNING-level; the higher Cat 1 eye damage classification here means splash to the eyes can cause permanent injury, not just temporary irritation. The H361 reproductive-toxicity entry adds the pregnancy-specific concern that the SDS spells out. Practically: eye protection isn't optional for a bleed job with this fluid.
No. Liqui Moly sells two different DOT 4 fluids: this one (Art. 20154, the standard 'Brake Fluid DOT 4') and SL6 DOT 4 (Art. 22389), which is the brand's low-viscosity, ABS/ESP-optimized variant. The existence of a separate SL6 product implies that the standard 20154 is not the low-viscosity formulation. If your vehicle's service literature specifies a low-viscosity DOT 4 for the ABS or ESP module (common on newer European cars), the SL6 is the matching part, not this one.
No. Amazon's product detail page flags proposition_65_warning: true via the product listing, but the SDS Section 15 entry for California Prop 65 reads 'None Reported,' and none of the five §3 ingredients (CAS 143-22-6, 111-46-6, 1559-34-8, 112-34-5, 111-77-3) appears on the current Prop 65 substance list maintained at content/_taxonomy/prop65-substances.yml. The Liqui Moly US product page also displays no Prop 65 callout. The Amazon flag is treated as a false positive in CCT's scoring, with prop65_override_source set to sds_section_15.
Yes for the chemistry class. The bottle states 'DOT 4 NON-SILICONE BASE,' which is the correct base for ABS, ESC, and traction control hydraulics · DOT 5 silicone fluid is the incompatible category. Liqui Moly does not appear to publish an explicit per-product ABS/ESC compatibility statement for the standard 20154, but the glycol-ether DOT 4 chemistry is inherently the matching fluid class. For a low-viscosity DOT 4 spec, use the SL6 sibling product instead of this one.
Marketing copy from Liqui Moly, via Amazon. Not editorial.
Weekly pick
One product, one safety verdict, every week. No spam.
Castrol
React SRF Racing Brake Fluid
Motul
RBF 600 DOT 4 Factory Line Racing Brake Fluid
ATE
Original TYP 200 DOT 4 Racing Brake Fluid
Motul
RBF 700 Factory Line Racing Brake Fluid
As an Amazon Associate I earn from qualifying purchases. Full disclosure
Community
0 postsShare how you use this product
Drop a quick comment or post a full review with photos and a star rating.
Sign in to postNew here? Create a free account.