Many cities and countries today have programs to convert older, polluting diesel transit buses and trucks to run on clean, economical natural gas. Properly implemented, this is an excellent way to quickly reduce fuel costs, clean up the air and reduce noise with minimum capital costs.

Diesel engines converted to natural gas generally require added components as well as some mechanical changes to the engine. The investment required means that these projects only make sense for larger volume fleets. Following is a very basic overview for a successful conversion:

• Compression Ratio
• Spark Plugs
• Valves
• Thermal Issues
• Catalytic Converter
• Engine Management System