Dual Fuel Engine
The Dual Fuel engine is a type of engine which 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 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.. Like for instance, the fuel efficiency can be 5% to 8% less than in a comparable lean-burn, spark-ignited engine at 100 percent load. It could even be lower or higher loads.

Lift Truck Fuel Sources and Classifications
There are some applications that have proved difficult for the forklift. Like for example, scrap metal is one of these problems. In order 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, 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, 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, around over 90 percent are powered by propane.

The most common power source for lift trucks is battery. Battery fueled units make up approximately 60% of the new forklifts sold within the USA. Their benefits consist of: quiet operation, less maintenance requirements, the ability to be used outside and indoors with no harmful emissions.