Dueso, Cristina Muñoz, Mariano Moreno, Francisco Arroyo, Jorge Gil-Lalaguna, Noemí Bautista, Ana Gonzalo, Alberto Sánchez, José Luis Performance and emissions of a diesel engine using sunflower biodiesel with a renewable antioxidant additive from bio-oil Fuel 10.1016/j.fuel.2018.07.013 2018 2018