AN ENGINE OIL SYSTEM AND A LID

The invention relates to a lid (250), such as e.g. a filter lid (50, 50', 150), for closing an opening (14) in an oil pan (10), said lid comprising:- an expandable closing arrangement (260) for closing the opening in said oil pan,- a first elongated element (270) having a first element connecting portion (272) connected to a first portion (262) of said closing arrangement by a first pivotable connection (263),- a second elongated element (280) having a second element connecting portion (282) connected to a second portion (264) of said closing arrangement by a second pivotable connection (265) distant from said first pivotable connection,wherein said first elongated element and said second elongated element are connected to each other by a pivotable joint (290) enabling said first elongated element and said second elongated element to be arranged:- in a first relative position in which the first pivotable connection is separated from said second pivotable connection by a first distance (D1) in which the expandable closing arrangement is in a first state in which the closing arrangement can pass through said opening, andin a second relative position in which the first pivotable connection is separated from said second pivotable connection by a second distance (D2) being greater than said first distance in which the expandable closing arrangement is in a second state, or an expanded state, in which the closing arrangement cannot pass through said opening.