Dual Fuel Engine
The Dual Fuel engine is a type of engine that utilizes a mixture of diesel fuel and gas fuel or could operate 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 Methane slippage as well as fuel efficiency.. For instance, 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 which can prove really difficult for lift trucks. For example, scrap metal is amongst these problems. In order to successfully handle things like this needs using the right type of machine for the task.

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

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

The most popular power source for lift trucks is battery. Battery fueled models make up about 60% of the new forklifts sold within the United States. Their benefits include: less maintenance requirements, quiet operation, the ability to be used inside and outdoors with no harmful emissions.