Investigation of the Effect of Mileage on the Physical and Chemical Properties on a Sample of Diesel Engine Oils Available in the Libyan Market. م ع ش [Internet]. 2025 Nov. 19 [cited 2025 Dec. 15];9(ملحق 36):435-43. Available from: https://cjos.histr.edu.ly/index.php/journal/article/view/496