Preheat the oven to 350°F (175°C) and grease a loaf pan.

In a mixing bowl, whisk together the oil, sugar, and eggs until well combined.

Stir in the grated zucchini and vanilla extract.

In another bowl, combine the flour, baking soda, baking powder, cinnamon, and salt.

Gradually add the dry ingredients to the wet ingredients, mixing until just combined.

Pour the batter into the prepared loaf pan and smooth the top.

Bake in the preheated oven for 60 minutes, or until a toothpick inserted into the center comes out clean.

Allow to cool in the pan for 10 minutes before transferring to a wire rack to cool completely.