Hi-Gear ProPower Throttle Body Cleaner (11 fl oz)

Hi-Gear explicitly claims this product is safe for oxygen sensors and catalytic converters — the claim appears in the Amazon feature bullets and a dedicated listing infographic. No SDS is available to verify the aromatic content that would chemically back this claim. The claim exists; the chemistry behind it cannot be independently confirmed at this time.

No Safety Data Sheet (SDS) has been located for Hi-Gear HG3247S despite an extensive search. CarCareTruth applies a fixed score of 3.0 for products without a publicly available SDS — not because the product is necessarily more dangerous than alternatives, but because the hazard data needed to score it accurately is unavailable. The score will be updated if an SDS is obtained.

As of the last data update, the product shows as unavailable on Amazon ('Currently unavailable'). It remains listed with active reviews, suggesting it was stocked in the past. Check the Amazon listing for current availability.

The front label shows DANGER signal word with 'EXTREMELY FLAMMABLE' and 'VAPOR HARMFUL' warnings. Without an SDS it is unclear whether DANGER is driven purely by flammability or also by health-tier H-codes. The label language ('VAPOR HARMFUL') suggests at least some inhalation hazard beyond flammability alone. This puts it in more aggressive territory than the typical WARNING-label TB cleaner.