What are the differences between oil-based coolant and water-based coolant?

[StLeonardo]

Water-based antifreeze has lower maintenance costs, while oil-based antifreeze is more expensive. Water-based coolant has some corrosiveness to the cooling system, whereas oil-based coolant is almost non-corrosive. Compared to water-based coolant, oil-based coolant performs better. Unlike water-based coolant, oil-based coolant does not contain water and cannot be mixed with water, giving it more sensitive thermal balance capability and better heat transfer performance. Relevant information about antifreeze is as follows: 1. Introduction: The full name of antifreeze should be antifreeze coolant, meaning it is a coolant with antifreeze properties. Antifreeze prevents the coolant from freezing and cracking the radiator or damaging the engine cylinder block or cylinder head when the vehicle is parked in cold winter conditions. 2. Function: It provides anti-corrosion protection for components of the cooling system; prevents scale formation, avoiding reduced heat dissipation in the radiator; and ensures the engine operates within the normal temperature range.