I just baked a double receipe of WASC. It will be 3 in layers with strawberry sleeve filling in between layers. I just realized after baking that I forgot the vegitable oil in it. I did put a little extra vanilla. Is this going to give me problems. Not sure if the oil is for moistness, flavor, or structure. Maybe all three. It was suppose to be 4 TBS for this receipe. Do I need to make a new cake.

I make mine without the oil. It will just be a little more dense.

I never use oil. I sub applesauce instead and makes it nice and moist. Really not sure what the oil does. Can you cut a piece off the top to test the taste?

I use the origional WASC receipe and it doesn't have any oil in it. Which WASC receipe are you using? I really don't think it will hurt your cake but I would taste some of your trimmings to be certain.

Slightly OT, but what are these sleeve fillings people are mentioning?

I use Kakelady's original wasc like Mamawrobin. It doesn't call for any oil. it gets the "fat" content from the sour cream. Did the one you used have sour cream in it?

Sleeve fillings are already prepared fillings, that you can use for filling cakes. You can buy them online, in cake decorating stores, restaurant supply stores. Like what bakeries use for their fillings.