Currently, HISD uses B5 (Diesel with 5% Biodiesel) in most of its bust fleet. Research shows that B100 (100% Biodiesel) would reduce greenhouse gas emissions significantly, but as a fuel it tends to “gel” in colder temperatures and this can lead to engine malfunction. The EIHS InvenTeam is currently developing “The Slush Buster”, which would be an automated system for regulating fuel viscosity in any diesel vehicle. Our invention would facilitate the use of B100 in any climate, as the current, widespread solution is simply to reduce the blend of biodiesel if the weather gets cold. We hope that our invention can be used by buses in HISD, and eventually vehicles in all parts of the country!