Nasir LM, Ogbeide-Igiebor V, Ozigis II. Emission Characterization of Petrol, Ethanol and Spent Engine Oil Blends for Two-Stroke Spark Ignition Engine. AJERD [Internet]. 2023 Aug. 14 [cited 2025 Aug. 2];6(2):39-4. Available from: http://www.journals.abuad.edu.ng/index.php/ajerd/article/view/162