Dual Fuel Engine
The Dual Fuel engine is a kind of engine that uses a mixture of gas fuel or diesel fuel or can 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 use 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 example, the fuel efficiency can be 5% to 8% less than in a comparable lean-burn, spark-ignited engine at 100% load. It could even be lower or higher loads.

Lift Truck Fuel Sources and Classifications
There are certain applications that have proved a challenge for the forklift. Like for instance, scrap metal is among these problems. In order to successfully handle things like this requires using the right type of equipment 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, gasoline, diesel and electric. The power source is linked to some of these particular classes. The main power sources for forklifts comprise Diesel, Gasoline, Battery, Fuel Cell and Propane.

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

The battery is the forklifts most common power source. Battery fueled units make up approximately 60 percent of the new forklifts sold in the USA. Their benefits include: less maintenance requirements, quiet operation, the ability to be used indoors and outdoors with no harmful emissions.