An improved electric mobile oil refiner which, can be mounted on any engine or hydraulic equipment has been developed to eliminate oil changes and extend the useful life of equipment. The author plans to show how the use of the refiner, a filter crusher and a batch refiner which recycles the oil extracted from the crushed filters, starts a cycle that can eliminate waste oil. If the use of this type of equipment is implemented on a large scale, it will result in a positive impact on the environment which can help alleviate the pollution problems created by the indiscriminate disposal of waste oil. Use of these devices should appeal to all segments of Government, private industry, environmental groups and private individuals, because it could save substantial amounts of money in maintenance and equipment, protect the environment, and conserve a precious natural resource, oil.The purpose of this paper is to present an overview of the capabilities of electric mobile oil refiner after over ten years of field and laboratory testing. It will also present the concept of filter crushers and portable batch refiners, which when used in conjunction with refiners, will benefit the environment. This paper will also outline the laboratory and field testing of electric mobile oil refiners on truck fleets, hydraulic equipment, marine engines and industrial engines in use for thousands of hours or have traveled hundreds of thousands of miles or kilometers demonstrating the refiners ability to prolong equipment life while saving maintenance dollars and improving the environment through the elimination of extension of oil drain intervals.