Feature: 1. The measuring box can measure the return oil quantity of six injectors at the same time 2. You can know whether there is any injector damage by comparing the flow rate of each injector returning to the tank 3. Allow you to identifies worn, blocked or inoperative injectors quickly and easily 4. Contains measurement tubes for short term tests and measurement bottles for long term tests, more accurate evaluation 5. Master kit includes range of adaptors to suit for Bosch/Delphi/Denso/Siemens injectors for comprehensive coverage of common rail diesel vehicles Specification: Item Type: Diesel Flow Meter Adapter Set Product Material: ABS + stainless steel Technical Parameters: A total of 6 measuring cups, each with approx. 70cm / 27.6in hose, for common rail engines, can measure up to 6 injectors at the same time to determine the injectors that are worn, blocked or failed. Adapter: Suitable For Bosch/Siemens/Denso/Delphi and other injectors. Usage: 1. Remove the buckle of the return line from the injector. 2. Remove the return pipe from the fuel injector. 3. Choose the right adapter. The pre-assembled hose adapter is suitable for Bosch syringes. 4. Install the measuring cup aluminum, if hooked on the engine hood, to prevent from falling, and the buckle of the original oil return device must be installed. 5. In order to obtain meaningful results, a measuring cylinder or measuring cup should be connected to each injector, for example, 6 measuring cylinders should also be used in a 6-cylinder engine Package List: 6 x Adapter for Bosch Injectors 6 x Adapter for Siemens Injectors 6 x Adapter for Delphi Injectors 6 x Adapter for Denso Injectors 1 Set of Reservoir Bottle with Oil Tube 6 x Graduated Manometer Tubes(use when starting engine)(95ml capacity)