Andy wrote:

Which is the best stuff to use to lubricate an up-and-over garage
door? I have steel runners up each side, nylon (?) wheels and a
bloody great spring across the top. The door opens very unevenly and
there seems to be a lot of black streaky stuff on the runners. Can I
just use the normal 3in1, WD40 etc, or is there something better?

Thanx.

Andy.


A loded grease - lithium? is what that gunk is.