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Environmental concerns over disposable oil filters impact engine oil filter selection for over-the-road trucks and buses. Fleets are extending oil drain intervals and considering alternatives to traditional spin-on filters in an attempt to reduce the costs associated with filter service and disposal. Alternatives to spin-ons, such as screen type separators, are inadequate in terms of particle removal efficiency and contaminant holding capacity. Further, these alternatives typically cost 20 to 40 times more than spin-on filters and are difficult to service. This paper discusses a new line of cleanable, high performance spin-on oil filters. Laboratory tests show that these reusable filters meet or exceed efficiency and capacity specifications set by engine manufacturers. These filters can be cleaned at the normally scheduled service interval without special tools and without removing the filter from the engine.

Environmental concerns over the use and service of traditional disposable oil filters are becoming important in filter selection for off-road equipment. This is particularly true on job sites where “zero” equipment oil leakage is demanded. However, many alternatives to traditional filters do not meet original equipment manufacturers specifications for particle removal efficiency and contaminant holding capacity. This paper discusses the operating features and performance of a new line of oil filters that can be cleaned in-place, on equipment. These new filters meet or exceed the capacity and contaminant removal efficiency of typical high performance synthetic or cellulose disposable filters. Laboratory test results of filtration performance and long term structural integrity are presented. Results of extensive, successful field testing on several types of off-road equipment will also be presented.