Ⅰ. Application GER used oil re-refining machine is particularly suitable to regenerate and refine internal-combustion engine oil including diesel engine oil, gasoline engine oil and internal-combustion engine oils. GER used oil re refining series can effectively remove colloid, oxid, acid, pitch, particles, impurities, water, gas in the oil. Specially, GER used oil refining machine can restore the color of used internal-combustion engine oil and remove the scent rapidly. Ⅱ. Edges of GER Design according to different customers’ needs. Purify blend oils. Low operation cost. Low maintenance and replacement expenses. High regeneration rate. Automatic reverse wash system will extend the lifetime of filters and improve the performance of the filters. High performance security system including pressure protection device and automatic temperature controller makes purifier operate safely. Small size, light weight, low noise.