Dual Fuel Engine
Dual Fuel or DF Engines are the type of engines that can work on a mixture of gas fuel or diesel fuel or it can work on diesel fuel alone. Duel Fuel engines are not able to run on gas alone as they do not have an ignition system, nor do they possess any spark plugs.

Since 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.. For instance, the fuel efficiency could 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 that have proved a challenge for the forklift. Like for example, scrap metal is among these problems. In order to successfully handle things like this needs utilizing the correct kind of equipment for the task.

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

The most popular overall are electric powered trucks, mainly in Class I, II and class III forklifts. In Classes V and IV, internal combustion trucks are more popular. The most common electric power source is the lead-acid battery. Amongst internal combustion trucks, about more than 90% are powered by propane.

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