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The Difference In The New Engines

Exhaust Technologies To Meet The EPA Requirements

Truck and engine manufacturers are developing new engines and exhaust technologies to meet the EPA requirements. The main challenge they face is reducing levels of NOx (Oxides of Nitrogen) and particulates by 90%.

Diesel-Exhaust Particulate Filters (DPF)

In order to meet the new emissions targets, engine manufacturers are proposing to use exhaust emission control devices such as diesel-exhaust particulate filters (DPF) in addition to directly modifying the emissions performance of the engines.

Exhaust Gas Recirculation (EGR), Clean Gas Induction (CGI) and/or a Diesel Particulate Filter/Oxidation Catalyst

Based on information published to date and discussion with the manufacturers, it appears that OEMs will use heavy Exhaust Gas Recirculation (EGR), Clean Gas Induction (CGI) and/or a Diesel Particulate Filter/Oxidation Catalyst.

The addition of these devices is likely to affect you in four ways:

  • Cost - New trucks will likely be more expensive due to the addition of a DPF or other exhaust after-treatment system
  • Maintenance - Periodic maintenance will be required on DPFs (exact interval will depend on specific engine type and service)
  • Fuel Consumption - New engines are likely to have higher fuel consumption
  • Lubrication - New trucks will be required to use oils meeting the new API CJ-4 quality requirements to ensure adequate protection and performance of both the engine and the exhaust after-treatment systems
 

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