Betty Crocker produces a Gluten Free Chocolate Chip Cookie Mix that is labeled O/U, with lettering on the package that declares: “Now may contain milk ingredients”. The O/U states that with all General Mills products (only), when this disclaimer appears on the label (may contain milk ingredients) it means that this product was produced on Dairy Equipment.
From The KIB: Pesach News – Avocado Oil and Spray
All Pure Virgin Avocado Oil & Spray (without additives), are fine for use on Pesach without a special Pesach designation on the label.