Absolutely season it again. You should season it 2 more times to be safe. Wipe it with vegetable oil and turn it upside down in the a 375-400 oven for one hour. Leave it in the oven until it's completely cool. The easiest way to do it requires an oven that has time bake. Set the oven for 1 hour at 400 with the DO in it at bedtime. Next evening repeat.
The complaints about the lack of proper seasoning are legendary. People who are new to CI buy a preseasoned one and assume they are ready, they aren't. The preseasoning is a great help however because it does provide the all important first seasoning which was difficult at times to do because the wax protecting the new CI was so tenacious.
2009 Dodge 3500 Laramie, DRW, 4X4, auto, 6.7L, B & W Companion.
Jayco Designer 34RLQS, Mor/Ryde