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 dermal toxicity — classified as toxic in contact with skin.
GHS Category 2 acute inhalation toxicity — classified as toxic if inhaled.
If inhaled or on skin:
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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Only when: splash risk
Translated from the manufacturer’s Safety Data Sheet, Section 8
SDS §8: 'None required for consumer use. If splashes are likely to occur: wear safety glasses with side shields (or goggles).' No H318/H319 in SDS §2 · the trigger is specific to splash risk during pour-fill, not a standing requirement.
CarCareTruth publishes the cited sources verbatim and does not advise what action a user should take. Consult the full SDS before use.
Translated from the manufacturer’s Safety Data Sheet, Section 2
H311 (toxic in contact with skin, Cat 3) is the SDS §2 basis for skin protection. SDS §8 specifies protective gloves and clothing for repeated or prolonged contact; pour-fill is the primary contact point for a bulk-poured fluid.
U.S. regulatory standard
29 CFR 1910.138(a); 1910.132(d)
“appropriate hand protection when employees' hands are exposed to hazards such as those from skin absorption of harmful substances.”
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.
Translated from the manufacturer’s Safety Data Sheet, Section 2
H331 (toxic if inhaled, Cat 3) and H332 (harmful if inhaled, Cat 4) plus the GHS06 skull-and-crossbones pictogram set the recommended floor for respiratory precaution. SDS §8 states no respiratory protection is needed under normal use conditions, but ventilation and evacuation may be required if exposure limits are exceeded or irritation is experienced.
U.S. regulatory standard
29 CFR 1910.134(a)(1)–(2)
“When effective engineering controls are not feasible… appropriate respirators shall be used.”
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.
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 #16 of 19 in Washer Fluid.Three above it ↓
Last reviewed July 4, 2026
TL;DR Rated to -20°F for all-season use, a commodity value-tier washer fluid with a dye-free, no-streak formula. 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.
Prime Guard Power Blast is a ready-to-use, all-season washer fluid rated to -20°F, placing it at the minimum threshold for reliable freeze protection across most of the continental US. The fluid ships in a standard 1-gallon jug with no dilution required. The dye-free formula is a plus for buyers worried about staining from splashes, and the label claims frost, road grime, and dirt removal without leaving streaks or residue. It ranks among the better-selling windshield washer fluids in its Amazon category, though it is a commodity-tier product without a standout performance differentiator.
Best for budget-minded daily drivers in climates that rarely see much colder than -20°F who want a low-cost, dye-free option. Skip it if your household has chemistry concerns or you live somewhere that regularly sees deeper freezes; a methanol-free formula or a fluid rated well below -20°F would be a better fit in either case.
The SDS carries a DANGER signal word: H302 (harmful if swallowed), H311 (toxic in contact with skin), H331 and H332 (toxic and harmful if inhaled), and H370 (organ damage from a single exposure). Proposition 65 applies because of the methanol content. SDS Section 8 ties eye protection to splash risk during pour-fill and calls for gloves during repeated or prolonged skin contact; pour-fill is the main exposure point for this bulk-poured fluid. Do not induce vomiting if swallowed, and seek medical attention. Drain-destined via stormwater runoff, but the SDS shows no aquatic toxicity classification for this formula.
The product label and the product listing state -20°F protection, marketed as an all-season formula. The SDS does not independently confirm a numeric freeze point, but the 30-40% methanol concentration is consistent with a -20°F to -31°F freeze-protection range for this formula type.
Yes. The SDS lists methyl alcohol (methanol, CAS 67-56-1) at 30 to 40% by weight as the primary active ingredient. This is standard chemistry for a commodity winter washer fluid. The DANGER signal word and Proposition 65 warning both stem from the methanol content.
Yes, per the product listing's material-features data. A dye-free formula is a positive signal for buyers concerned about wiper or paint staining from concentrate splashes.
The SDS classifies this product as H302 (harmful if swallowed) and H311 (toxic in contact with skin). For ingestion, do not induce vomiting; rinse the mouth and call a poison control center or physician immediately. For skin contact, wash off immediately with soap and plenty of water while removing contaminated clothing. Keep the product out of reach of children and pets.
Prime Guard is a value-tier brand distributed by Highline Aftermarket, sold through auto parts distributors, hardware retailers, and Amazon. It ranks among the higher-selling windshield washer fluids in its Amazon category, but it is a commodity-tier product rather than a premium or specialty formula.
The listing for Prime Guard Power Blast -20°F Windshield Washer Fluid carries a California Prop 65 warning. Prime Guard Power Blast -20°F Windshield Washer Fluid is a working automotive fluid rather than a passive part, so the warning points at the formulation itself. The manufacturer's Safety Data Sheet is the primary source for what is in it: the hazard classification and the PPE tiers on this page are translated from that sheet, and the full SDS is linked from the safety panel. California requires the warning whenever exposure to any of roughly 900 listed substances is possible. It does not name which substance applies to a given product, and it states no dose or risk level, so it is not on its own a measure of how hazardous this fluid is in normal use.
Marketing copy from Prime Guard, via Amazon. Not editorial.
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