Dual Fuel Engine
The Dual Fuel engine is a kind of engine which uses a mixture of diesel fuel and gas fuel or can operate off of diesel by its self. The dual fuel engine is not capable of running on gas alone. These engines do not have ignition systems and do not use spark plugs.

As the engine is not a pure diesel engine and diesel is not a pure gas, this machine does suffer from poor fuel efficiency and Methane slippage. For example, the fuel efficiency may be 5% to 8% less than in a comparable spark-ignited, lean burn engine at 100% load. It can even be greater on lower loads.

Lift Truck Fuel Sources and Classifications
There are some applications which have proved a challenge for the forklift. For instance, scrap metal is amongst these issues. To be able to successfully handle things like this requires utilizing the right type of machine for the task.

In this write-up, the 7 major lift truck classes are discussed, including the power sources such as liquid propane gas, hydrogen fuel cell, gasoline, diesel and electric. The power source is linked to some of these particular classes. The main power sources for forklifts consist of Gasoline, Battery, Diesel, Fuel Cell and Propane.

Electric powered trucks are the most popular, mainly Class I, II and class III forklifts. Internal combustion engines are more common in Classes IV and V. The most popular electric power source is the lead-acid battery. Amongst internal combustion trucks, approximately more than 90 percent are propane powered.

The most common power source for lift trucks is battery. Battery powered units make up around 60% of the new forklifts sold within the United States. Their benefits consist of: less maintenance requirements, quiet operation, the ability to be used inside and outside with no harmful emissions.