Dual Fuel Engine
The Dual Fuel engine is a type of engine which utilizes a mixture of gas fuel or diesel fuel or can work 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 use spark plugs.

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

Lift Truck Classification and Fuel Sources
There are some recycling materials handling applications that can prove extremely challenging for lift trucks. Like for instance, scrap metal is one of these issues. To be able to successfully handle items like this requires using the correct kind of equipment for the job.

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

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

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