Does Coolant Entering Engine Oil Require an Overhaul?

[Juan]

Coolant entering the engine oil necessitates an overhaul. If the engine block is cracked, leading to coolant mixing with the oil, the block must be replaced during the overhaul. Similarly, if the head gasket is cracked, causing coolant to enter the oil, the engine cylinder head must be opened to replace the gasket. Related details: 1. Engine Oil: Also known as engine lubricant, with a density of approximately 0.91×10³ (kg/m³), it serves to lubricate and reduce friction, assist in cooling, seal against leaks, prevent rust and corrosion, and dampen vibrations in the engine. It is often referred to as the 'lifeblood' of a car. 2. Coolant: The full name is antifreeze coolant, indicating its ability to prevent freezing. Antifreeze prevents the coolant from freezing in cold weather, which could otherwise crack the radiator or damage the engine block.