Avocado Oil, Cooking and the Smoke Point of Oils. Despite all of its benefits for our health, avocado oil as a cooking oil is a very heat stable and one of the best possible oils for high-temperature frying. Here’s why it’s worth changing from all those unhealthy processed oils like cottonseed, soy, corn and canola oil, and even the healthier ones like olive oil, to avocado oil for cooking and frying with.