A method and an engine are disclosed for determining an amount of fuel in the engine oil. The medical probe assembly includes an elongated shaft, a needle electrode array, and a hinged handle. At least one layer of the PCB includes a planar conductive material disposed over a planar insulating material. Water enteringpassing through a \u201ctreatment area\u201d are subjected to light emanating from an ultraviolet laser. The post has an edge which is disposed in a coextensive relationship with at least a portion of the edge of the bottom member whereby the bottom member, top member and post cooperate to define a box flap receiving slot having a height at least equal to the thickness of the box flap but less than two times the thickness of the box flap. Moreover, the user writes by means of the writing device a command which is recorded electronically and which qualifies the managing of the electronically recorded information in the communication network.