New 100% Tested Common Rail Diesel /Fuel Injector Nozzle DLLA155S007

How to keep prevent the nozzle injector in good condition
The use of fuel that meets the requirements is the prerequisite for ensuring the normal operation of the engine, and it is also the basic condition for reducing the failure of the fuel injection nozzle assembly and prolonging its service life. Because of the use of fuel that does not meet the requirements, its lubrication, sealing performance and viscosity cannot meet the requirements, which will cause carbon deposits on the parts of the fuel injection nozzle, resulting in increased wear of the parts of the fuel injection nozzle and reduced service life. In addition, the fuel has not been purified, the fuel filter device is damaged or the filter element is removed, and the oil circuit is "smooth" and other wrong practices will shorten the service life of the fuel injector parts. For this, the following should be done:
A、 Use the standard brand fuel that meets the regulations according to the season or temperature. Generally, the freezing point of diesel oil should be about 5°C higher than the minimum, to ensure that the diesel oil should be preheated when it is used under the lowest conditions.
B、 Establish a strict fuel oil sedimentation and filtration system. Diesel oil should be precipitated and filtered before use to remove impurities, generally not less than 48 hours. This is because the high-pressure oil pump and fuel injection nozzle of the diesel engine are very precise, and if a little mechanical impurities enter, they will be severely worn.

If we pay attention  to the aboved issues,  the lifespan of the injection nozzle should be extened. And wee don't need to change the injector nozzle frequently.