Dual Fuel Engine
The Dual Fuel engine is a type of engine which utilizes a mixture of diesel fuel and gas 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.

Since 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.. 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 can even be lower or higher loads.

Lift Truck Classification and Fuel Sources
There are certain recycling materials handling applications which can prove very challenging for lift trucks. Like for example, scrap metal is one of these issues. In order to successfully handle items like this needs utilizing the correct type of machinery for the task.

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

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

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