Here's why:
* Different Lubrication Properties: Transmission fluid and engine oil have vastly different chemical compositions and lubrication properties. Transmission fluid is designed for high-pressure, low-speed lubrication, while engine oil handles high-speed, high-temperature conditions.
* Viscosity: Transmission fluid is typically much thicker than engine oil. If poured into the crankcase, it won't flow properly through the engine's lubrication system, leading to:
* Oil starvation: Vital engine components won't receive adequate lubrication, resulting in excessive wear and friction.
* Clogging: The thick fluid can clog oil passages and filters, obstructing oil flow.
* Chemical Incompatibility: Transmission fluid contains additives that are incompatible with engine oil and engine parts. These additives can react with engine oil and cause:
* Corrosion: Damage to engine components due to chemical reactions.
* Deposits: Formation of harmful deposits on engine parts, reducing efficiency.
* Increased Friction: The wrong type of fluid will lead to increased friction within the engine, resulting in:
* Overheating: The engine will run hotter than normal, potentially causing damage.
* Reduced Performance: The engine will lose power and efficiency due to increased friction.
Consequences of Pouring Transmission Fluid into the Engine:
* Engine Failure: The most severe consequence is a complete engine failure.
* Expensive Repairs: Even if the engine doesn't completely seize, repairs to address the damage can be very costly.
* Reduced Lifespan: The engine's lifespan will be significantly reduced.
Never, under any circumstances, pour transmission fluid into your engine crankcase.
