Alkanes from nonane to, for instance, hexadecane (an alkane with sixteen carbon atoms) are liquids of higher viscosity, less and less suitable for use in gasoline.
ˈælkeɪnz fɹʌm nˌɑːnˈeɪn tuː, fɔːɹ ˈɪnstəns, hˈɛksɐdˌɛkeɪn ɐn ˈælkeɪn wɪð sˈɪkstiːn kˈɑːɹbən ˈæɾəmz ɑːɹ lˈɪkwɪdz ʌv hˈaɪɚ vɪskˈɔsᵻɾi, lˈɛs ænd lˈɛs sˈuːɾəbəl fɔːɹ jˈuːs ɪn ɡˈæsəlˌiːn.