Dual Fuel Engine
The Dual Fuel engine is a type of engine which utilizes a mixture of diesel fuel and gas 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 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 fuel efficiency, as well as Methane slippage.. For example, the fuel efficiency may be 5% to 8% less than in a comparable spark-ignited, lean burn engine at 100% load. It can even be lower or higher loads.

Lift Truck Classification and Fuel Sources
There are some recycling materials handling applications which can prove really challenging for lift trucks. For instance, scrap metal is among these problems. In order to successfully handle things like this requires utilizing the right type of equipment 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 particular classes. The main power sources for forklifts comprise Diesel, Gasoline, Battery, Propane and Fuel Cell.

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

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