What Vegetable Oil Can I Use for Lamps?
https://www.primalsurvivor.net/vegetable-oil-lamp/You can use just about any cooking oil as a fuel for a lamp. Other types of fat – such as ghee or butter – will also work.
Olive Oil: This is the best choice for your vegetable oil lamp. It won’t produce smoke while burning.
Canola or Sunflower Oil: These are cheap and will burn. However, they will produce some smoke.
Walnut, Almond, Sesame, Flax Oils: Nut and seed oils are great for lamps. They won’t produce smoke like canola will. However, these oils are pricey so you probably won’t want to use them for your lamp. Cheap olive oil is a better option.
Ghee or Butter: Traditionally, animal fats (such as whale blubber or fish oil) were used for oil lamps, especially in cold areas where veggies weren’t available. You can actually just put a wick directly in a stick of butter and burn it. These thick fats don’t work as well in jars though.
