Tier 4 Interim Fluids and Filtration
Ultra Low Sulfur Diesel Required For Engines Meeting Tier 4 Interim or Equivalent Emissions Regulations
Ultra-Low Sulfur Diesel (ULSD) fuel is legally required for Tier 4 Final engines in North America and Stage IV in the European Union. The ULSD in North America must contain 15 parts-per-million (ppm) or less sulfur content. In the European Union, ULSD must legally be 10-ppm at the point of manufacture and is expected to be 15-ppm at the point of use. High fuel quality is now an integral part of total engine and fuel systems. Using high sulfur content fuel in Tier 4 engines will damage the fuel and aftertreatment systems. Availability of ULSD is widely available in North America and the European Union.
Low Ash Lube Oil
CJ-4 is the American Petroleum Institute (API) lube oil specification for engines using exhaust aftertreatment such as a Diesel Particulate Filter (DPF) and cooled Exhaust Gas Recirculation (EGR). Commonly known as “low ash” oil, it is more resistant to heat and leaves lower amounts of ash deposits when it does burn off during the combustion process. The lower ash content of the oil enables the DPF to reach the EPA mandated 4,500 hour ash cleaning service interval for engines above 174 hp (130 kW).
In Europe, the equivalent specification to CJ-4 low ash oil is ACEA E9, which was also introduced specifically for engines using exhaust aftertreatment. CJ-4 was first introduced for use with EPA 2007 on- road engines and is now the industry recommended specification for Tier 4 Interim engines, as is ACEA E9 in Europe for Stage IIIB engines.
Cummins Direct Flow™ Air Filtration
Cummins Direct Flow air cleaner has been specifically developed for Tier 4 Interim systems to provide a smaller, more flexible installation package and higher air filtration efficiency. This is accomplished by creating a direct-flow path through the filter media which is packaged in a rectangular configuration with a low profile design rather than a conventional cylindrical shape used for Tier 3 engines. This new technology is an integral part of Cummins Tier 4 Interim solution offering better engine protection and lower maintenance costs with the highest levels of efficiency over the filter life.
With enhanced filtration efficiency, Direct Flow offers the opportunity to extend filter service intervals and reduce operating costs.