Wheel Nut:
Chris Webb:
Castrol had a depot at Hyde years ago and their second depot was round the back of the Dog and Partridge on Sheffield side of Woodhead.Fletcher Miller
Alma Works
Furnace Street
Flowery Field
HydeI remember it well as Castrol Hyde. I have mentioned the square wooden tanks upstairs and the smells. It probably fuelled my addiction for Castrol R
It seems a shame that this thread had dropped down to page 5. 
There is a bit here about Fletcher Miller before they changed to Castrol.