Albion gearbox BF436 - where used?

[R]

Thixotropic?

Yup.
Think OO grade comes into it also.
AKA  semi fluid grease

Ride on lawn mowers use it their gearboxes, almost universally.
So if all else fails, the local mower shop will have it.
Better price too ?

[Rex]

Spheerol. Cheap and cheerful, and works well on old 'boxes.

[Vreagh]

I've used the semi fluid grease in the gearbox and have not had a single drip and a sweet box ( for an Albion). You need patience to fill it though.

[R]

Spheerol.

Need to be careful here.
Castrol makes quite a range of Spheerol greases.
Only the OO version is the semi-fluid stuff.

[cardan]

Penrite Transoil 250. It's oil, it's really thick, and it comes with a tube in the cap to squeeze it into the box.

Leon