What Causes Smoke from the Car Radiator?

[MacEzra]

Possible causes include excessively rich air-fuel mixture, excessive engine oil in the fuel, poor sealing of piston rings or crankshaft oil seals, water presence in the fuel, faulty spark plugs, or a clogged air filter. Below are additional details: 1. Effects of a rich air-fuel mixture: Increased fuel consumption with reduced power, accelerated carbon deposit formation, and in severe cases, backfiring from the exhaust (indicated by black spark plugs). Unburned excess mixture may seep into the oil pan, diluting the engine oil and impairing its lubricating properties, leading to excessive wear of internal components. 2. Introduction to combustible mixture: The combustible mixture consists of air and fuel. Air and atomized fuel mix in the intake manifold to form the combustible mixture, which is then distributed to each cylinder. Typically, hydrogen, carbon monoxide, and methane are considered combustible mixtures.