On a lube oil cooler, what flows through the tubes?

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Multiple Choice

On a lube oil cooler, what flows through the tubes?

A lube oil cooler is a heat exchanger that uses the engine’s coolant to remove heat from the engine oil. In this design, jacket water flows through the tubes. The hot engine oil circulates around the outside of the tubes and transfers its heat through the tube walls to the cooler jacket water inside the tubes; the jacket water is then carried to the radiator to be cooled. This arrangement keeps the oil temperature within a safe range, preserving viscosity and lubrication quality.

A lube oil cooler is a heat exchanger that uses the engine’s coolant to remove heat from the engine oil. In this design, jacket water flows through the tubes. The hot engine oil circulates around the outside of the tubes and transfers its heat through the tube walls to the cooler jacket water inside the tubes; the jacket water is then carried to the radiator to be cooled. This arrangement keeps the oil temperature within a safe range, preserving viscosity and lubrication quality.

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