Liqui Moly Brake Fluid DOT 4

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 Rainforest API, 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 ingredient_review.

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.