I've done Lucas too but as stated above, you should be able to find a bike specific oil or an oil fitting the parameters talked about. Online seems to be the way to go nowdays, I'm lucky here in Cleveland we can still find Rotella, well, for now at least.
Maybe talked about before but what I'm seeing at the places I used to buy Rotella are now only stocking their own brand of oils made for them. And some new outlets selling Rotella that didn't before. Moving the cheese around.