I really like Argan oil, but I only use a few drops at a time. I mix 4 or 5 drops with a little water and protein spray in my palm and scrunch it on dry hair, just the ends. I use it sometimes to scrunch out the crunch and sometimes just as a boost. I also massage two drops into my scalp before bed sometimes, if my roots feel extra dry. As long as I use a minuscule amount, I don't seem to have trouble with it.
Olive oil, on the other hand, just sits on my hair and never absorbs, and I have a heck of a time washing it out, even with low poo. I want to try coconut oil but haven't yet.