CarCareTruth Score
Decent, but it's tough on the environment.
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Prices may varyHealth score is for adult use as intended. No manufacturer SDS is on file, so it is translated from the ingredient chemistry. 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.
No Safety Data Sheet on file.
CarCareTruth has not received a Safety Data Sheet from the manufacturer for this product, so no GHS hazard classification can be cited. The tiers below are cautious defaults — “Beyond SDS” — translated from the product’s ingredient chemistry and how comparable formulations classify, not from a manufacturer hazard classification. Request an SDS from the manufacturer before use.
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Only when: splash risk
Beyond SDS: translated from the ingredient chemistry
No H319 confirmed at mixture level from actual SDS (SDS not obtained). Signal word WARNING from bottle label; eye protection is situational during a full system flush when old fluid is displaced at the reservoir. Normal top-off pours carry low splash risk.
No Safety Data Sheet is on file for this product. The tier above is a cautious default translated from the ingredient chemistry, not a cited manufacturer classification. Request an SDS from the manufacturer before use.
Only when: prolonged use
Beyond SDS: translated from the ingredient chemistry
No H315 or H317 confirmed at mixture level from actual SDS (SDS not obtained). Signal word WARNING from label. Situational glove use during extended system flush or drain operations. Brief pour contact during a top-off is low risk.
U.S. regulatory standard
29 CFR 1910.1000; 1910.1200
“Each employer shall assure that no employee is exposed [in excess of the PEL]…”
OSHA standards apply to workplaces. Cited here as the U.S. reference threshold for the underlying hazard class.
No Safety Data Sheet is on file for this product. The tier above is a cautious default translated from the ingredient chemistry, not a cited manufacturer classification. Request an SDS from the manufacturer before use.
Only when: in enclosed space
Beyond SDS: translated from the ingredient chemistry
No inhalation H-codes confirmed at mixture level; high flash point (204°C) makes vapor inhalation negligible under normal pour conditions. Situational only in an enclosed, unventilated garage with extended exposure to an open container.
No Safety Data Sheet is on file for this product. The tier above is a cautious default translated from the ingredient chemistry, not a cited manufacturer classification. Request an SDS from the manufacturer before use.
No PPE specified in published sources for ventilation. Absence does not imply “not needed” — no Safety Data Sheet is on file, so request one from the manufacturer before use.
PPE tiers here are cautious defaults translated from the product’s ingredient chemistry — no manufacturer SDS is on file to cite. 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 #5 of 8 in Power Steering Fluid.Three above it ↓
Last reviewed June 14, 2026
TL;DR Synthetic power steering fluid with a viscosity index of 153 and published kinematic viscosity data · genuine high-VI synthetic with excellent cold-start performance documented in the PDS. Claims compatibility with Ford, GM, Chrysler, Toyota, and Honda without naming a specific OEM fluid specification in the TDS. Prop 65 warning applies.
Royal Purple MAX EZ is a synthetic power steering fluid · confirmed by a viscosity index of 153, pour point of −43°C (−45°F), and flash point of 204°C (400°F), all from the manufacturer PDS. That viscosity profile puts it firmly in the high-VI synthetic class alongside purpose-built OEM-spec fluids like Pentosin CHF 202, outperforming standard mineral-oil or ATF-type PSF on cold-start flow and thermal stability. The product does not include a stop-leak or seal conditioner additive; the PDS notes excellent seal compatibility as a performance characteristic of the base chemistry. No named OEM specification (Dexron VI, Honda PSF, Pentosin CHF 11S, or equivalent) is listed in the PDS or TDS · compatibility is asserted at the platform brand level (Ford, GM, Chrysler, Toyota, Honda) rather than by pointing to a verifiable spec document.
Best fit for owners of domestic and Japanese vehicles · Ford, GM, Chrysler, Toyota, Honda · whose power steering reservoirs accept a generic hydraulic PSF and who want a synthetic with high-VI cold-start performance. The "quiets noisy pumps" claim is well-corroborated in consumer reviews and is consistent with the high-VI synthetic formulation. Skip it for European platforms (BMW, Mercedes, Porsche, Audi, Volvo) · those systems almost universally require Pentosin CHF 11S or CHF 202 specifically, and a "universal" synthetic PSF is not an approved substitute for those OEM hydraulic specs. Skip for Honda or Acura vehicles that specify Honda PSF by name · Royal Purple does not document a Honda PSF approval. Skip if your vehicle has electric power steering (EPS) · EPS systems do not use hydraulic fluid.
WARNING signal word confirmed from the bottle label. The GHS SDS was not publicly available at scoring; H-codes at the mixture level are unconfirmed. The viscosity data rules out H304 (aspiration hazard) · a KV40 of 48 cSt is well above the 20.5 cSt exemption threshold. Prop 65 warning applies for Di-isodecyl phthalate (reproductive harm), confirmed from third-party product listings. Eye protection and gloves are situational during a full system flush; normal top-off pours carry low exposure risk. High flash point (204°C) means vapor inhalation is negligible at ambient pour conditions. Old fluid is drain-destined · collect and take to a recycling center or automotive retailer; do not pour down household drains or storm sewers.
The listing for Royal Purple MAX EZ Power Steering Fluid carries a California Prop 65 warning. Royal Purple MAX EZ Power Steering Fluid is a working automotive fluid rather than a passive part, so the warning points at the formulation itself. CarCareTruth has no Safety Data Sheet on file for it, so there is no published hazard classification to translate against the warning. Request an SDS from the manufacturer before use. 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 Royal Purple, via Amazon. Not editorial.
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