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A new closed-crankcase filtration system from Donaldson Co Inc eliminates engine crankcase emissions and improves the operating efficiency of diesel engines in medium- and heavy-duty trucks and buses and light vehicles.
Donaldson's Spiracle filtration system uses a two-stage coalescing process to reduce entrained oil mist while maintaining crankcase pressures. Mounted between the engine breather port and air intake system, the Spiracle system helps...





