The Disposable Syringe is used to draw, measure, and dispense controlled amounts of liquid during maintenance and servicing tasks. It functions through a sliding piston mechanism that creates suction to pull fluid into the barrel and controlled pressure to release it as required. The transparent body allows visual monitoring of the fluid level during filling. During engine-related service procedures, the syringe can be used to fill clean engine oil inside a piston cavity using a reusable probe until the chamber is full and oil accumulates in the designated cup area.Attributes:• Supports gradual buildup of oil until accumulation is visible in the cup.• Controls discharge speed through manual force adjustment.• Provides visual monitoring of fluid level through a transparent barrel.Applications: The Disposable Syringe is used during engine servicing to draw clean engine oil and fill internal piston cavities through a reusable probe until oil accumulates in the designated cup area, ensuring accurate and controlled lubrication before operation.