Dual Fuel Engine
The Dual Fuel engine is a kind of engine that utilizes a mixture of diesel fuel and gas fuel or can operate 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 fuel efficiency, as well as Methane slippage.. Like for example, the fuel efficiency could 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 Classification and Fuel Sources
There are certain recycling materials handling applications that could prove very challenging for lift trucks. Like for example, scrap metal is among these problems. To be able 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 like hydrogen fuel cell, liquid propane gas, electric, gasoline and diesel. The power source is linked to several of these specific classes. The main power sources for forklifts consist of 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 common in Classes IV and V. The most popular electric power source is the lead-acid battery. Amongst internal combustion trucks, approximately more than 90% are propane powered.

The battery is the forklifts most common power source. Battery fueled models make up about 60 percent of the new forklifts sold in the USA. Their benefits consist of: less maintenance requirements, quiet operation, the ability to be used outdoors and indoors with no harmful emissions.