What is another word for dual-fuel?
Pronunciation: [djˈuːə͡lfjˈuːəl] (IPA) 
Dual-fuel refers to a type of engine or heating system that can use two different types of fuel. While dual-fuel is commonly used, there are a number of synonyms which could be used to describe the same technology. Some of the most popular alternatives include hybrid fuel, twin fuel, and bi-fuel. Additionally, alternative phrases such as "duel-fuel" (which is often misspelled) or "two-fuel" could also be used to describe this technology. Ultimately, the terminology that is used may vary depending on the industry or the specific use-case, but all of these phrases refer to the same concept of using more than one type of fuel to power a system.
