CNG, LPG or propane fuel conversions

Many commercial vehicles have converted to CNG (compressed natural gas)and LPG (propane). CNG is similar to propane except that there are not very many places to refuel at. There are many benefits to running either of these fuels instead of regular gasoline. The cost per mileage of propane is cheaper overall than gasoline. Unfortunately the overall range will probably be lessened due to the slightly lower BTU’s or energy within the fuel. Luckily refilling propane is not a big deal and there are refueling stations all over. Also if this conversion is done on a currently carbureted vehicle, the conversion could actually increase the mileage. Regular gasoline needs to be atomized or turned into a fine mist to burn cleanly. Regular carburetors don’t do a very good job of atomizing gasoline. The propane is already in a gaseous form after it un compresses. Propane will mix and burn evenly and very efficiently in the engine. This is why emissions of HC, CO and NOX are drastically reduced.

 

The gains will be lessened on a newer vehicle that already uses fuel injection but can still be a cheaper alternative. The power is very comparable to gasoline and the difference should not be very noticeable. The conversion is usually a fairly simple conversion. The fuel system will obviously need to be converted. A new carburetor or (converter) will be needed to control the gaseous fuel flow. The tank is usually secured well in the trunk but must have the vent system running outside the vehicle. The lines must also be secured and kept away from any moving parts including suspension parts. The different fuel can make gains from advanced timing also, but does not need it. The maintainance should also lessen as there is little or no residue left in the engine. This is due to all the fuel being burned because it is not in a liquid form. Another advantage is that over 80% of propane from the U.S. comes from within this country. Thus lessening our foreign energy (oil) dependency.