A flexible-fuel vehicle (FFV) is a car or truck that can run on different types of fuel. It's like having a picky eater who will only eat certain foods, but with a FFV, it's more like a flexible eater who can eat different kinds of food.
Most cars run on gasoline, but an FFV can also run on ethanol, which is a kind of alcohol made from plants like corn or sugarcane. Ethanol is a renewable fuel, which means it's made from plants that can be grown again and again, unlike gasoline which comes from oil that can't be replaced once it's used up.
The cool thing about an FFV is that it can run on either gasoline or ethanol or a mixture of both. It's also called a "dual-fuel" car because it has two options of fuel, just like you have two options of breakfast cereal in the morning.
The FFV has a special system in the car that adjusts the fuel mixture based on the type of fuel it's using. It's like a chef who adjusts the recipe based on the type of ingredients being used.
So, if you fill up your FFV with gasoline, it will run like a regular car. But if you fill it up with ethanol, it will still run smoothly. This is because the car's system can detect how much ethanol is in the fuel and adjust the engine settings accordingly.
In summary, an FFV is a fancy car that can run on different types of fuels like gasoline and ethanol. It's like having a picky eater who can eat different foods, and it has a special system that makes sure everything runs smoothly.