Motorcycle riders should change the gear oil per 2000km, but is it still useful of the replaced gear oil Many people pour out randomly which will cause serious pollution to the environment.
The replaced gear oil contains dissolved carbon (this is the main reason for the reason why the waste oil is black), low-temperature sludge, mechanical impurities, the viscosity of the change is not small. The author will be used to filter the waste oil filters after adding 5% of grease (butter), fully stirred dissolved, poured into a detergent waste bottle in reserve (the best bottle has retractable opening and closing device). The high viscosity oil made from waste oil is good for lubrication of open or closed drive chains. Hundreds of kilometers per drive plus a little (side rotation after the wheel plus drip plus).