Various methods and systems are provided for a vehicle. In one example, a vehicle comprises a first fuel tank configured to store a first fuel, and a second fuel tank configured to store a second fuel, both the first fuel tank and the second fuel tank disposed in the vehicle, a multi fuel engine disposed in the vehicle, the multi fuel engine configured to combust the first fuel and the second fuel, a fuel injection system configured to inject the first fuel into the multi fuel engine, and a conduit configured to route the second fuel from the second fuel tank to the multi fuel engine.