Pengaruh Aditif Pelumas Hexagonal Boron Nitride terhadap Keausan Mesin Diesel B30 dalam Uji Durabilitas 200 Jam M Faizur Rijal Azhad, M Faizur Rijal Azhad, Parman, Immanuel Fredy Augustino, Rahmat Basya Shahrys Tsany, Dicki Nizar Zulfika PISTON: Jurnal Teknologi Vol. 10 No. 2 2025 DOI 10.55679/pistonjt.v10i2.118