Splash Original Blue Windshield Washer Fluid -20°F

The product label and SDS Section 9 both confirm a freezing point of −28.9°C (−20°F). This is a solid mid-tier cold-weather rating — adequate for most of the continental US winter but not for extreme northern climates that regularly see temperatures below −20°F. For colder conditions, look for a −30°F or colder formula.

Yes. SDS §3 (FMP/Recochem, rev 2020-08-24) lists methanol (CAS 67-56-1) at 30–32% by weight as the primary freeze-point depressant. Methanol is the standard chemistry for winter washer fluid at this temperature rating. The DANGER signal word, H370 organ-damage classification, and Proposition 65 warning all stem from the methanol content.

Methanol-based winter washer fluids are not generally CARB-compliant for consumer sale in California, and this product carries a Proposition 65 warning for methanol as a developmental toxicant. Availability through specific retailers can vary, but California residents looking for a clean fit should generally choose a methanol-free or ethanol-based washer fluid with CARB compliance.

Methanol ingestion requires immediate medical attention. The SDS classifies this product as H302 (harmful if swallowed) and H370 (causes damage to organs — methanol optic-nerve pathway). Call Poison Control (1-800-222-1222 in the US) or emergency services immediately. The formula contains denatonium benzoate as a bittering agent intended to reduce accidental ingestion, but it does not eliminate the hazard — keep the container out of reach of children and pets.

No. Splash Original Blue −20°F is a ready-to-use (RTU) formula sold in a 1-gallon jug — no dilution needed. Splash also sells the formula in 55-gallon drums (product code 234555) and totes (234620) for commercial accounts; the gallon jug is the consumer SKU.