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

As the engine is not a pure diesel engine and diesel is not a pure gas, this machine does suffer from Methane slippage and fuel efficiency. Like for example, the fuel efficiency may 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 Fuel Sources and Classifications
There are some recycling materials handling applications which can prove really difficult for lift trucks. Like for example, scrap metal is amongst these issues. To be able to successfully handle things like this needs using the right type of machine for the job.

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 consist of Gasoline, Battery, Diesel, Propane and Fuel Cell.

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

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