Dual Fuel Engine
The Dual Fuel engine is a type of engine which uses a mixture of gas fuel or diesel fuel or could work 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.

Because diesel is not a pure gas, and it is not a pure diesel designed engine, it has some disadvantages in the department of Methane slippage as well as fuel efficiency.. Like for example, the fuel efficiency may be 5% to 8% less than in a comparable lean-burn, spark-ignited engine at 100% load. It could even be lower or higher loads.

Lift Truck Classification and Fuel Sources
There are some applications which have proved difficult for the forklift. Like for example, scrap metal is one of these issues. In order to successfully handle items like this needs utilizing the right type of equipment for the task.

There are 7 major lift truck classes, including power sources like hydrogen fuel cell, liquid propane gas, gasoline, diesel and electric. The power source is linked to some of these particular classes. The main power sources for forklifts consist of Diesel, Gasoline, Battery, Propane and Fuel Cell.

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

The battery is the forklifts most popular power source. Battery fueled models make up roughly 60% of the new forklifts sold within the United States. Their benefits comprise: quiet operation, less maintenance requirements, the ability to be used outside and indoors with no harmful emissions.