freeze protection
also called freezing point · protects down to
The temperature at which the coolant begins to form ice crystals, under a stated dilution — the protection figure a buyer chooses on, and often part of the product's own name: TotalEnergies sells 'Coolelf Auto Supra -37 C'. Measured by ASTM D1177 and stated with its `fluid_condition`, because it is a property of the MIX and not of the bottle: GLACELF AUTO SUPRA publishes -38 C at 50 per cent dilution by volume. DISTINCT from `pour_point` on the parent, which is an oil's ASTM D97 pumpability limit and does not depend on any dilution; no product publishes both, and the two answer different questions about different substances. Concern measurement.
Freeze protection is a measured figure, given in °C.
It belongs to measurement — its measurable, physical facts.
the bundle what travels with each freeze protection
A freeze protection is not a lone value — each statement is a self-correlating bundle, carrying its own:
asked by the kinds that answer it
1 kind answers it, each for a single value. The same question can be reused by unrelated kinds — one meaning, many homes.
asked by kinds that answer it
The same question can be reused by unrelated kinds — one meaning, many homes.
| kind | how many |
|---|---|
| coolant | one |