A fuel cut during deceleration is executed at time point t1. An oxygen storage amount (rOS) which increases with this fuel cut is estimated based on an exhaust air-fuel ratio and an intake air quantity. When the oxygen storage amount (rOS) reaches a thresh...

The lid has a cap-like closure body (1) screwable on a filler neck, and a retainer comprising a lip seal (10) for sealing an annular gap between the neck and the body. An insert element (4) is fixed into the body through an open lower side of the body. The...