Analisis Pengaruh Tingkat Pencampuran Bahan Bakar B0-B100 Biodiesel Fatty Acid Methyl Ester (FAME) dengan Minyak Solar Angka Setana 51 (CN 51) terhadap Karakteristik Fisika-Kimia Bahan Bakar dan Tekanan Pengabutan Injektor = Analysis of the Effect Blending Rate of B0-B100 Biodiesel Fatty Acid Methyl Ester (FAME) with Petro-Diesel with a Cetane Number 51 (CN 51) on the Physico-Chemical Properties of Fuel and The Pressure of Injector Spray