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Isuzu is a manufatur that can be regarded as a pioneer in the use of common-rail technology. This system that manages and squirts fuel into the mechanical heart of diesel has many advantages, compared to conventional diesel engines.

"The current technology that Isuzu has developed is the common-rail engine. This engine will help Isuzu to deal with government regulations regarding Euro 4. In addition, this engine will help consumers save on fuel, because this common-rail system can set the combustion appropriately, "explained Attias Asril, General Marketing of PT Isuzu Astra Motor Indonesia.

Various advantages obtained from this system. The following are the greats of the common-rail made by Isuzu:

Common rail technology is able to reduce emissions and higher output, which is related to injection pressure.
Reducing noise and exhaust emissions, due to controlling the quantity of fuel injection.
Improve engine performance due to flexible time control.
Free to control injection pressure, in response to engine speed and load.
"Isuzu engines are engineered to produce enough (not excessive) torque and kick so that engine pressure is not too high. The aim is to reduce engine wear and increase component life. Reliability is determined by creating an optimal fuel / air mixture and ensuring that heat produced by the combustion process is constant and also sprayed uniformly, "said Iwao Sasaki, Chief Engineer of Isuzu Motors Limited's PT Product Planning & Engineering Dept.

The engine design effort undertaken by Isuzu is aimed at producing maximum torque at low engine speeds - under 2,000 rpm - because at that speed, the most economical fuel consumption and engine response characteristics are considered positive, which has good pulling power.

But beyond that, fuel contamination is one of the biggest enemies of the common-rail engine. Then the use of poor quality fuel will also have a negative effect on the diesel common rail fuel system (CRD). Fuel filters and water separators cannot remove all traces of water, especially the mixture of fuel and water becomes emulsified.

In facing these challenges, Isuzu already has the answer when building the engine to be strong against such damage. "First, we adopted the best fuel filter, which has a filtration efficiency to separate water. Secondly, we installed a filter that is packaged with a water level sensor based alarm system. In addition, the fuel injector is also arranged with a special coating, which protects against substances stranger, "Sasaki concluded.