MECHANICAL BOX OIL

Hi, I wanted to consult about a change of mechanical cash oil ... A friend says he wants to change the oil because it costs him to pass the changes ... but his vehicle is a f3r byd with 15,000
I have understood that the average mileage average change is like 60,000 km ... that varies according to manufacturer ...
and they have told me that the change is not advisable before that mileage for the wear of the pine A more accurate response,
do I want to know if it would affect or improve changes when changing the oil?
Is it advisable to change it with such little mileage of use?
Well I appreciate your answers in advance thanks

Having, not to improve changing the oil if it is difficult for the marches to be very difficult for oil, if you change it, it will be the same, the duration of the cash oil is approx 60 thousand kilometers, nothing happens if you change it before time, but eye the Chinese have in their majority problems in the gearboxes, but you should handle your vehicle But I tell you because it happened to me.

Nothing happens if you change the oil every thousand kilometers if you want, but as Kikemec says, you would have to handle it to see if the changes are actually hard, and if the changes are actually hard, the safest thing is that the lever joints have been resected