Many different oils will work in this cake to keep it tender and moist. One of the main differences in oils is the flavour it adds to the cake. I like to use extra virgin olive oil as it is on the healthier side when it comes to oils, and it adds a rich flavour to baked goods. This recipe has also been tested with vegetable oil, and both canola and avocado oil would be good substitutes as well. I would avoid using virgin coconut oil as it will add a coconut flavour to the cake.