oil change

[tru3_k177]

hi guys, i know this might be a very simple question. but its a question that i always forgot the answer. how often do you guys change then engine oil?

and is there any benefit using oil draining valve thing that stuck on the oil draining hole?

thanx guys

[SMI-33K]

hey bro

you change your oil every 5,000ks to 10,000ks depending on your driving style

and the oil draining valve is a waste of time