Answers.comÂ® is making the world better one answer at a time. Single Overhead Cam is what the letters SOHC stand for. Multi-Point Fuel Injection is what MPFI or MPI stands for.
TransCanada proposed a fourth phase for the pipeline as far back as 2008. This is known as the Keystone XL project and it is Keystone XL that is causing controversy. The XL project will provide a second route through the North-West of America from the Western Canadian Sedimentary Basin in Alberta, Canada. It will supplement the existing capacity provided by the Keystone pipeline.
One of the central arguments by pipeline pushers is that tar sands expansion will move forward with or without Keystone XL. This has proved to be untrue. Dealing in tar sands oil is an expensive endeavor. Itâs costly both to produce and to ship, particularly by rail, which would be an alternative to Keystone XL.