60074 Luke does its best to hide its own train behind a smoke screen, as it passes evidence of recent lineside vegetation clearance at Gossington on 17 September 2020 with the 6B13 04:19 Robeston to Westerleigh oil tanks. When the loco was approximately half way from the bridge in the background, it let out a huge pall of clag, that had only partly dispersed when I took the picture. The pollution was enough to make me cough as it went by! Although the departure time was the same, this was running in a two hour later path here.