The Lubricant Lab: Improving Flow with Pour Point Depressants

Pour point depressants are oil additives that improve flow at low temperatures. They prevent oil from thickening and help ensure proper circulation at cold start-up temperatures. Pour point depressants work by interfering with wax crystal formation.

These additives contain long hydrocarbon chains with polar groups on the ends. The polar molecules adhere to growing paraffin wax crystals, preventing them from fully interlocking into a rigid structure. This lowers the temperature at which the oil can still flow.

Without sufficient pour point depression, engine oil can thicken in cold weather and fail to properly lubricate vital components. Pour point additives ensure the oil flows and provides protection, even in frigid winter temperatures.

Modern pour point depressants balance optimal low-temperature flow with minimal impact on other oil properties at regular engine operating temperatures. Improving cold-flow performance helps engines start easily and avoid wear in cold climate driving.

Rely on Valorem Chemicals for high-quality pour point depressant additives.

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