🔥 Coolant Flow Path Inside an Internal Combustion Engine – Full Technical Explanation Dive into the complete journey of engine coolant as it moves through the block, head, radiator, turbocharger, heater core, and every critical component. This video breaks down the entire coolant circulation system in a simple, technical, and engaging way. The purpose of coolant circulation is to absorb extreme combustion heat and carry it away from the engine’s hottest zones. Without this engineered flow path,