Does biodiesel get better mileage than diesel?

Biodiesel generally provides slightly lower fuel economy compared to petroleum diesel, typically resulting in about 5-10% less mileage per gallon. This difference is mainly due to biodiesel's lower energy content. However, the exact mileage can vary based on the vehicle, engine type, and specific biodiesel blend used. Ultimately, while biodiesel is a more renewable option, it may not offer the same fuel efficiency as traditional diesel.