How many colours of Engine Oil can be seen in vehicles. What might be the reason for each colour?

Question

Accepted Answer

Engine oil in vehicles can be seen in various colors, each indicating different properties and conditions.

Engine oil can be black or dark brown, which is the normal color indicating it is doing its job of lubricating the engine.
Engine oil can also be amber or light brown, which may indicate the oil is clean and in good condition.
Milky white engine oil may indicate the presence of coolant or water in the oil, possibly due to a leaking head gasket.
Green engine oil may indicate the presence of antifreeze, which could be a sign of a leaking radiator or coolant system.
Red engine oil may indicate the presence of transmission fluid, which could be a sign of a leak in the transmission system.

Top Bajaj Auto Area Service Manager interview questions & answers