168217 speeds through Islip station on 7 May 2018 with the 1T45 16:00 Marylebone to Oxford Chiltern Railways service. Like the majority of trains on the route, this service is not booked to call at Islip. The signal at the end of the platform marks the point where, prior to the line's upgrading, a siding branched off to the left to serve a small oil depot.