Greasing Taper BB threads

[strakos]

The bolts that hold my crank to the Bottom Bracket keep getting loose.

I´ve been greasing the threads on the bolt and then screw the bolt in very tight, but it keep getting loose.

Should I put some locktite on the threads?
Or should I grease AND locktite the threads?(this seems a little bit stupid)

[Honeywell]

Put some blue loctite on them instead, and them crank them down to spec. You shouldn't have any more problems with them coming loose.