Izinhlobo zeminyango yomlilo zihlukaniswa ngokuyinhloko zibe iminyango yomlilo wezinkuni kanye neminyango yomlilo yensimbi. Ahlukaniswe abe amamaki amathathu: IBanga A, iBanga B kanye neBanga C. Amabanga amathathu ikakhulukazi ubude besikhathi sokumelana nomlilo. I-Class A umnyango ongenamlilo, onokubekezelela umlilo we-1.2; Umnyango we-Class B ongenamlilo, onokubekezelela umlilo we-0.9; Umnyango we-Class C ongashi, obekezelela umlilo ongu-0.6.

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