Research has shown that up to 80% of diesel engine problems stem from fuel contamination or poor quality fuel. YDT553 fuel analyser gives the ability for measuring to identify failures caused by fuelling issues. The Delphi Fuel Analyser is a robust, hand-held unit that provides immediate and accurate results via a digital display screen. The YDT-553 diesel fuel analyser tool will specify the level of biodiesel in the fuel sample, and identify if impurities are present. Using this data, the workshop or garage can immediately identify whether there is an unacceptable amount of biodiesel present or impurities which will have impacted on the fuel injection system.