I put about 1ml of pg and 1 ml of everclear 151 in a bottle then added 1ml of LorAnn's orange oil. About a week later I siphoned off .5 ml of what was floating on top and the rest, while not the strongest tasting, had a nice orange flavor. I'm gonna try again with maybe 2ml of the orange oil to the same amount pg & alcohol.
I'm not even positive of it being "oil" , but the fact that it's listed as not water soluble or something along those lines (can't remember exactly what the website said) makes me a little wary of vaping it. Personally, when I think of vaping "oil" I get an unpleasant visual, lol.
I'm not even sure if what I'm doing is in fact removing any oil at all

. Heck, it could have just been the water content of the alcohol picking up color and floating on top, lol
I should also add, that I made a 1ml test batch with the flavored pg/alcohol mix @ approx. 5% flavor and it vapes fine and taste mildly of orange and has not separated in 5 days.