Just change the oil filter, do not change the oil, OK?
more carbon is mixed with the product after combustion, lubricating oil into the abrasive on the mechanical accelerated wear,
it will hinder the oil circulation, the heat dissipation capability of the engine will drop, engine damage probability increased, so every time when the need for an oil change.
because the filter mesh filter will be blocked by impurities, generally work in the engine 5000KM after the clogging rate was above 60%, the oil filter that has no filtering effect,
in order to prevent the harmful impurities, must use oil filter to filter impurities,
The engine at work, because of the mechanical wear will cause a lot of metal debris,
