Dual Fuel Engine
The Dual Fuel engine is a kind of engine that utilizes a mixture of gas fuel or diesel fuel or could run off of diesel by its self. The dual fuel engine is not capable of working on gas alone. These engines do not have ignition systems and do not utilize spark plugs.

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

Lift Truck Classification and Fuel Sources
There are certain recycling materials handling applications which could prove really difficult for lift trucks. Like for example, scrap metal is amongst these problems. To be able to successfully handle items like this needs utilizing the right type of equipment for the job.

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

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

The most common power source for lift trucks is battery. Battery fueled units make up about 60% of the new forklifts sold in the USA. Their benefits consist of: less maintenance requirements, quiet operation, the ability to be used outdoors and inside with no harmful emissions.