Summary:

After the unprecedented rise in oil prices, the Government of Jordan became more interested in using diesel fuel to power vehicles running on the road. This is due to its economy and to reduce the fuel bill on the government. This was accompanied with growing concern over its environmental impact. To reduce its environmental impact, the Government of Jordan made it mandatory for all types of diesel vehicles to put a Diesel Particulate Filter (DPF or CDPF) to try to curb the increasing levels of exhaust pollution. Extensive research was conducted on diesel engines to reduce the level of pollutants emitted and improve its performance. Significant improvement in the engine's emission levels was achieved. This research can be broadly classified into two areas (1) engine fuel improvement and (2) improving the engine design.

URL: http://www.scipub.org/fulltext/ajes/ajes42157-163.pdf