ignition lock cylinder
 

the key is hard to turn and gets stuck sometimes in the ignition lock cylinder is there any thing to do to the lock cylinder to make it easyier like wd-40

At this point of trouble, I would suggest that you get a new cylinder, before this one breaks, and you are stuck somewhere.

Perhaps a locksmith can rebuild yours.

i had a problem with the key not being able to turn but i got a new key made and it works fine. as far as your key getting stuck, probably the lock cylinder