Pratama, R.I., Hadi Rahmad and Mubarok, A.F. 2026. PENGARUH VARIASI KONSENTRASI ASETON TERHADAP PENINGKATAN DAYA, TORSI DAN EMISI MOTOR OTTO 4 LANGKAH : THE INFLUENCE OF ACETONE CONCENTRATION VARIATION ON POWER, TORQUE, AND EMISSIONS IN A 4-STROKE OTTO ENGINE. Jurnal Teknik Mesin. 5, 1 (May 2026), 501 –. DOI:https://doi.org/10.33795/j-meeg.v5i1.8179.