CarCareTruth Score
Decent, but wear gloves and ventilate.
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.
GHS Category 1 carcinogenicity — classified as suspected of causing cancer with repeated or prolonged exposure.
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
H318 (serious eye damage, Cat 1, GHS05) is the SDS §2 classification. Eye protection during concentrate pour-fill is the chemistry-basis response to the H318 classification, not SDS Section 8 boilerplate.
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.
Translated from the manufacturer’s Safety Data Sheet, Section 2
H315 (skin irritation, Cat 2) and H317 (skin sensitizer, Cat 1 · citral, d-limonene, sodium pyrithione) appear in SDS §2. No H311 (dermal toxicity). The H315/H317 classification is the chemistry basis for skin protection during concentrate handling.
U.S. regulatory standard
29 CFR 1910.138(a)
“appropriate hand protection when employees' hands are exposed to hazards such as those from… chemicals which produce an adverse effect on the skin or eyes…”
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.
The published Safety Data Sheet for this product does not specify lungs protection for consumer use.
Workplace context
29 CFR 1910.1003; substance-specific 1910.1001–1910.1052
“Each employer shall ensure that no employee is exposed [in excess of the substance-specific PEL]…”
Triggered by GHS H350 on the SDS.
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
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 #8 of 19 in Washer Fluid.Three above it ↓
Last reviewed July 16, 2026
TL;DR Rated to +32°F only · zero sub-freezing protection; skip it for any climate that freezes. Thirty years of devoted owners confirm outstanding cleaning and streak-free clarity. The 200:1 concentrate ratio delivers exceptional per-gallon value. Health score is 3.7/10 · a DANGER-class concentrate with real handling hazards despite being methanol-free.
Kristall Klar is a 200:1 cleaning concentrate · one 8.5 fl oz bottle makes over 13 gallons of working fluid. The product provides no freeze protection whatsoever; the label is explicit about that limit. Thirty years of community use and broad, well-rated owner feedback point to genuine consensus: strong bug, grime, and road-film removal with a streak-free finish. The alkaline formula includes water softeners that help prevent mineral buildup in washer-system jets.
Best for daily drivers in warm or mild climates who want a premium methanol-free concentrate with well-rated cleaning performance and outstanding per-gallon value. Also suited to enthusiasts who use it year-round in temperate regions. Skip it if your climate regularly drops below freezing · the formula provides zero cold-weather protection and will freeze at 0°C once diluted.
SDS §2 (Rev 2025-10-01) carries a DANGER signal word driven by two Cat-1 classifications: H318 serious eye damage and H350 carcinogen (Cat 1A, traced to ethanol's IARC Group 1 designation), alongside H302 harmful if swallowed, H315 skin irritation, and H317 skin sensitizer. Eye protection is the H318-based precaution during concentrate dosing; skin protection is recommended from the H315/H317 classification. At the working 1:200 dilution every listed ingredient concentration drops proportionally, and the carcinogenicity classification traces to ethanol's background IARC designation rather than a washer-fluid-specific hazard. Drain-destined via stormwater; avoid storm-drain disposal · sodium pyrithione is acutely aquatic-toxic per SDS §12 data. The surfactants are biodegradable per SDS §13.
No. The product label states explicitly 'NO Freeze Protection · Once diluted, product will freeze at approximately 32°F (0°C).' It is a warm-weather or year-round cleaning concentrate for climates that do not see freezing temperatures. For freeze protection, nextzett makes a separate Anti-Frost formula.
The label specifies approximately 0.7 fl oz (20 ml) of concentrate per gallon of water · a 1:200 dilution ratio. One 8.5 fl oz bottle makes over 13 gallons of working fluid. Mix only with untreated tap water; distilled or softened water may cause foaming.
The DANGER signal word reflects two Cat-1 SDS §2 classifications: H318 (serious eye damage) from the alkaline surfactant concentrate at pH 10.6, and H350 (carcinogen, Cat 1A) traced to ethanol's IARC Group 1 designation. These are genuine SDS-derived classifications, not generic boilerplate.
The health deductions reflect the DANGER signal word, H302 harmful if swallowed, H315 skin irritation, and H317 skin sensitizer, on top of the two Cat-1 classifications (H318 serious eye damage and H350 carcinogen Cat 1A) that trigger the rubric's worst-hazard ceiling mechanism. The product avoids methanol's acute systemic toxicity codes (H301/H331/H370), a genuine improvement over commodity methanol fluids, but the remaining SDS §2 classifications still produce a low score for the concentrate as handled during dosing.
Yes · SDS §13 confirms the surfactants are biodegradable per the EU Detergents Regulation. This is an SDS-sourced confirmation, not a marketing claim, and is credited in the environment score.
Marketing copy from nextzett, via Amazon. Not editorial.
Weekly pick
One product, one safety verdict, every week. No spam.
Qwix Mix
Windshield Washer Fluid Concentrate
SONAX
Clear View Windshield Washer Concentrate
Sanco Industries
Aqua Charge Windshield Washer Ultra Concentrate
303 Products
Instant Windshield Washer Tablets
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.