Dual Fuel Engine
The Dual Fuel engine is a kind of engine that utilizes 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 running on gas alone. These engines do not have ignition systems and do not utilize spark plugs.

Since 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 can be 5% to 8% less than in a comparable spark-ignited, lean burn engine at 100 percent load. It could even be lower or higher loads.

Lift Truck Fuel Sources and Classifications
There are some applications which have proved a challenge for the forklift. Like for instance, scrap metal is amongst these problems. In order to successfully handle items like this requires using the right type of machine for the job.

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

The most popular overall are electric powered trucks, mostly in Class III, II and class I forklifts. In Classes IV and V, internal combustion trucks are more popular. The most popular electric power source is the lead-acid battery. Amongst internal combustion trucks, about more than 90 percent are powered by propane.

The most popular power source for lift trucks is battery. Battery powered units make up around 60 percent of the new forklifts sold in the USA. Their benefits comprise: less maintenance requirements, quiet operation, the ability to be utilized outside and inside with no harmful emissions.