Question

Advantages of water as a coolant over oil cooling system

Answer 1

Water is inexpensive and non-toxic. The advantages of usingwater cooling over air cooling includewater's higher specific heat capacity, density, and thermal conductivity. This allows water to transmit heat overgreater distances with much less volumetric flow and reduced temperature difference.

Answer 2

Answer:

The specific heat of water or water/glycol is about twice that of oil, so a given volume of water may absorb more engine heat than can the same volume of oil. Therefore, water may be a better coolant if an engine is permanently producing large amounts of heat, making it better for high-performance or racing engines.