Thorough examination of CI engine performance metrics and emission patterns with incorporation of sustainable waste cooking oil biodiesel blends across diverse nozzle pressure regimens: A numerical study: EFFECT OF NOZEL PRESSURE VARIATION ON CI ENGINES RUNNING ON WCO BIODIESEL A NUMERICAL STUDY. Indian Journal of Engineering and Materials Sciences (IJEMS), [S. l.], v. 31, n. 5, p. 728–741, 2025. DOI: 10.56042/ijems.v31i5.11105. Disponível em: https://or.niscpr.res.in/index.php/IJEMS/article/view/11105. Acesso em: 13 may. 2026.