Dual Fuel Engine
The Dual Fuel engine is a type of engine which uses 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 utilize 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.. For example, the fuel efficiency could 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 Classification and Fuel Sources
There are some recycling materials handling applications that could prove really difficult for lift trucks. Like for example, scrap metal is among these issues. To be able to successfully handle things like this needs using the right type of machinery for the task.

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

Electric powered trucks are the most common, mostly Class I, II and class III 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, roughly more than 90% are powered by propane.

The most common power source for lift trucks is battery. Battery powered models make up around 60% of the new forklifts sold within the United States. Their benefits consist of: quiet operation, less maintenance requirements, the ability to be utilized inside and outside with no harmful emissions.