An easy test to verify - get all the food types in your party inventory (at time I verified this, I had 30 of each for all food types). You should have a +8 Food Variety bonus to your party morale. Now pick up *one* Oil, and check your morale again. The Food Variety bonus will have fallen to +2. Sell the Oil and you'll immediately go back up to +8 again.
I don't *think* this is intended. It wasn't too hard to figure out, since Oil appears in all trade lists by default before the end of the rest of the food items (all food items are clustered at the top of the list otherwise).
I don't *think* this is intended. It wasn't too hard to figure out, since Oil appears in all trade lists by default before the end of the rest of the food items (all food items are clustered at the top of the list otherwise).



