LittleTom said:Put the pin in the vial with just about all the air in the syringe, close to 2-3ccs. One the pin is in the vial shoot the air from the syringe into the vial. Draw up the oil into the pin, a very small amount because you are more than likely going to get some air. Shoot the tiny bit of oil back into the vial so the is no air in the syringe. Redraw nothing but oil. Sound like a process but in reality it takes about 5 seconds.. you will get the hang of it.
This is solid advice. The only thing I add is that I tip the vial, when possible, so the air I shoot goes into the air pocket rather than bubbling up my gear and having to deal with a ton of annoying bubbles. I also am careful to never let the tip of the needle touch the glass. It's a little over protective, but I have never had an issue so I'll stick with playing it safe.