Why the engine oil of corolla looking brown second time on?

[shareef]

the engine oil looked brown so i changed it

got it drained first

the second time it stayed golden for a week and again same brown color.

what do i do

[lion]

u have to flush out the engine.

[Amohd]

when the car is not serviced on time the engine oil will change color as its getting over use. it can be that something else is mixing with the oil. when the car is serviced and still this happens then you can check further for problems.