Engine Ice Hi-Performance Coolant + Antifreeze (Pre-Mixed)

Engine Ice TYDS008 is positioned and tuned for powersport applications — motorcycles, ATVs, snowmobiles, watercraft, and UTVs. It carries no ASTM D3306 or D6210 certification and no named OEM approvals for passenger cars. The freeze protection of -7°F (label) / below -4°F (SDS §9) is materially narrower than the standard ASTM D6210 baseline of -34°F at 50/50, which makes this product unsuitable as a year-round coolant in passenger cars exposed to northern-climate winters. For a passenger car, use a coolant that meets your vehicle manufacturer's OEM spec.

Engine Ice is propylene glycol-based, not ethylene glycol — the SDS classifies the mixture as not hazardous under OSHA HCS, with no signal word, no GHS pictograms, and no H-codes at the mixture level. SDS §11 explicitly states the product is not classified as acutely toxic. This is materially safer than standard ethylene glycol coolants, which carry H302 (harmful if swallowed) at minimum and H300 (fatal if swallowed) at the upper end. The Prop 65 warning on the bottle relates to three trace process-byproduct ingredients (ethylene oxide, 1,4-dioxane, propylene oxide) at parts-per-billion concentrations disclosed in SDS §15 — not to the bulk PG chemistry.

Engine Ice TYDS008 is pre-mixed at the factory with deionized water and is ready to pour directly into the cooling system without further dilution. The Amazon listing confirms 'Premixed with deionized water for out-of-the-bottle use.' Do not dilute further — adding tap water would change the protection range and could introduce minerals that compromise the corrosion inhibitor package.

Engine Ice is propylene glycol-based — materially less acutely toxic than standard ethylene glycol coolant per the SDS classification. The OAT inhibitor package is phosphate-free. The trade-off is freeze protection: Engine Ice covers down to about -7°F (label) / -4°F (SDS §9), while a standard 50/50 ethylene glycol coolant covers down to -34°F. This makes Engine Ice well-suited to powersport applications (motorcycles, ATVs, watercraft, track use) where heat dissipation matters more than cold-soak protection, and unsuitable as a year-round passenger-car coolant in cold climates.

Spent coolant — including propylene glycol-based coolants like Engine Ice — should be collected and recycled at end-of-service. Auto parts stores including AutoZone, O'Reilly Auto Parts, and Advance Auto Parts operate used-fluid collection programs that accept coolant at no charge. Do not pour into storm drains, on the ground, or into household trash. SDS §13: 'Do not empty into drains. Avoid release to the environment.'

The Prop 65 warning is triggered by three trace process-byproduct ingredients disclosed in SDS §15: ethylene oxide (CAS 75-21-8), 1,4-dioxane (CAS 123-91-1), and propylene oxide (CAS 75-56-9). Each is present at 0.000007242 weight percent — extreme parts-per-billion levels typical of process byproducts in ethoxylated or polyether intermediates. California's Prop 65 disclosure threshold is conservative enough that these trace levels require the warning, even though the bulk product (propylene glycol pre-mix) is not classified as hazardous at the mixture level under OSHA HCS.