Substitues for Vegetable Oil -Spread-
It's vegetable oil spread, not vegetable oil. It's just another name for margarine, which is normally made from vegetable oil. So substitute as you would for margarine, because that's what it is.

Without knowing the recipe, I have to assume oil is a bad substitute here, because generally you don't want to substitute a liquid fat for a solid fat. But if you're just melting it, for example, it wouldn't matter.