The effect of additive addition to fuel with variations in preheating and water coolant on multi-cylinder diesel engine performance. JMEL : Journal of Mechanical Engineering Learning, [S. l.], v. 13, n. 2, p. 55–61, 2025. DOI: 10.15294/jmel.v13.i2.5076. Disponível em: https://journal.unnes.ac.id/journals/jmel/article/view/5076. Acesso em: 6 dec. 2025.