We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United...
RGR, a consortium comprising Spoornet, the South African rail operator, and NPLI, an international group of companies specialising in infrastructure investment, has signed a concession agreement with the Mozambican Railways and Government to upgrade and run the Maputo corridor line for the next 15 years.
The EGR valve, or Exhaust Gas Recirculation valve, is a vacuum controlled valve which allows a specific amount of your exhaust back into the intake manifold. This exhaust mixes with the intake air and actually cools the combustion process. Cooler is always better inside your engine.