My 01 corolla has 32000 mile on it. And I haven't done any service yet, except a transmission oil change a year ago. Today I go to auto service shop for a oil change. the staff told me that my transmission oil is very dirty and needs to be changed, as well as the air filter. But he also recommend the 30k service, which cost $180 including oe plugs.
Is this price reseasonable? I am in southern california.
And do I need new plugs?(I dn't know much about cars)
By the way , the engine of my corolla is very noisy lately. Is it because of the transmission oil?