Dual Fuel Engine
The Dual Fuel engine is a type of engine that uses a mixture of diesel fuel and gas fuel or could run 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.

Because 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.. Like for example, the fuel efficiency can 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 Classification and Fuel Sources
There are certain recycling materials handling applications that can prove really challenging for lift trucks. Like for example, scrap metal is amongst these issues. In order to successfully handle things like this needs using the correct type of machine for the task.

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

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

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