A building near me has a whole lot of Best core locks. Most of them mounted the usual vertical (bible on top, so the notched side of the key is at
12:00). Some are leversets, which means horizontal keyway.Personally, I like graphite when I can use it in the truck. Then, I can tip the cylinder upside down, or put graphite in while I have the plug out. But, what's a good lubricant when the locks are all installed, vertical?