CarCareTruth Score
Mediocre, but wear gloves and ventilate.
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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 2 acute oral toxicity — classified as toxic if swallowed.
GHS Category 2 acute dermal toxicity — classified as toxic in contact with skin.
GHS Category 2 acute inhalation toxicity — classified as toxic if inhaled.
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.
This product ranks #11 of 15 in Washer Fluid.Three above it ↓
Last reviewed May 25, 2026
TL;DR Rated to −27°F · adequate for most of the continental US, though sibling SKUs reach deeper cold. The 3-in-1 positioning (de-icer plus bug wash plus a water-beading additive) is a genuine year-round versatility play, and the broad, well-rated owner feedback backs the cleaning claims. Health score is 1.0/10 · the lowest tier · due to a DANGER-class formula with serious handling hazards. Methanol-free alternatives exist for households where that matters.
Prestone AS658P is a year-round, ready-to-use washer fluid rated to −27°F, putting it in the mid-tier for freeze protection · adequate for most US winters but a step shy of the deepest dedicated winter de-icers. The 3-in-1 positioning combines cold-crack protection, a bug-removal surfactant package (the alkaline pH 10.7·10.8 in SDS Section 9 confirms a real cleaning chemistry distinct from a pure de-icer), and a water-beading additive. The community signal is strong, well-reviewed by a large owner base, and supports the cleaning and year-round versatility claims. Not for sale in California.
Best for one-bottle daily drivers who don't want to swap between a winter de-icer and a summer bug wash and live in a climate where −27°F protection is enough. Skip it if you face routine sub-−30°F cold · the sibling AS250 de-icer at −34°F is the better cold-climate pick · or if your household has chemistry concerns, in which case alcohol-free formulas score significantly higher on health. Not available in California.
SDS 757 carries DANGER with H301 (oral toxicity), H311 (skin toxicity), H331 (inhalation toxicity), and H370 (single-exposure optic nerve and central nervous system damage). Methanol is the active solvent at 26·34% (SDS Section 15 Prop 65 disclosure). Proposition 65 applies. SDS Section 8 specifies splash-proof goggles and chemical-resistant gloves (butyl rubber or Viton); pour-fill is the main exposure point. Organic vapor cartridge respirators are explicitly NOT recommended for methanol vapor · supplied-air or SCBA only if exposure limits are exceeded. Drain-destined via stormwater; no aquatic H-codes in SDS Section 12 (methanol LC50 in fathead minnows is 29,400 mg/L · very low aquatic toxicity).
The product label and Amazon title state −27°F protection. SDS Section 9 lists a freeze/melting point below 28°F (below −33.3°C) for the higher-methanol industrial pack; the −27°F rating on the consumer label is the all-season figure. That puts it in the mid-tier for freeze protection · adequate for most of the continental US, but the sibling AS250 de-icer reaches −34°F if you face deeper cold.
Per the Amazon title and front-label imagery, the formula combines three functions: de-icing (methanol-based cold-crack protection), bug-wash (alkaline surfactant package · note the SDS §9 pH of 10.7·10.8, much higher than the AS250 de-icer's pH 5), and a water-beading additive. It is positioned as a year-round single-bottle alternative to the season-specific AS250 (winter) and Bug Wash (summer) siblings.
Yes. SDS 757 lists methanol (CAS 67-56-1) at 15 to less than 35% by weight; the SDS Section 15 Proposition 65 disclosure narrows the actual concentration to 26·34%. Methanol is the active de-icing and cleaning solvent. The DANGER signal word and Proposition 65 warning on the label both stem from the methanol content. Ethylene glycol was removed from the formula in the 2020 reformulation.
No. Section 1 of the SDS explicitly states the product is not for sale in California due to CARB consumer-product VOC restrictions on methanol. California residents should look for an alcohol-free or low-VOC washer fluid formulated for CARB-restricted markets.
Methanol ingestion is a medical emergency. The SDS classifies this product as H301 (toxic if swallowed) and H370 (single-exposure organ toxicity · optic nerve and central nervous system). Contact Poison Control (1-800-222-1222 in the US) or emergency services immediately. Do not induce vomiting. Keep the product out of reach of children and pets, especially in the orange/yellow jug, which is visually similar to consumer beverages.
Marketing copy from Prestone, via Amazon. Not editorial.
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