Guys needs some Castrol 4T oil for my bike…
anybody know which shops will be open after 8pm?
Obviously depends where you are.
If near Wembley, despite their name, Midnight Motors open until 10 pm. Ring them to see if they have what you want:
South Way
Wembley, HA9 0HX
020 8903 3388
Lots of petrol stations sell oil for bikes. I know they sell 2t. Have never looked that closely, i get mine from halfords on sunday mornings 
Most Esso garages sell castrol 4T, I know Curtis gets the oil for his 675 from the Esso on the A10 in Enfield.
+1 for petrol stations, although it will probably be car biased
know halfords do castrol for future reference
Some large 24 hour Tescos sell motor oils.
Thanks guys.
I was lucky went in to Halfords 5min before closing time.