NOVELTY - Cracking a biocrude, comprises: (a) obtaining the biocrude from a recombinant microorganism; and (b) cracking the biocrude resulting in a cracked product; or (c) catalytically cracking the biocrude at 350 degrees C or lower.    USE - The methods are useful for cracking a biocrude; for cracking a hydrocarbon feedstock produced by a microorganism; and for producing biofuel mixture produced from the biocrude (all claimed).    DETAILED DESCRIPTION - Cracking a biocrude, comprises: (a) obtaining the biocrude from a recombinant microorganism, where the recombinant microorganism produces the biocrude from a substrate containing the fatty acyl chain, or where the recombinant microorganism over expresses a peptide that converts the substrate containing a fatty acyl chain to a hydrocarbon intermediate, a hydrocarbon or the biocrude, or where the biocrude is substantially free of any compounds that include oxygen, or where the biocrude includes greater than 90 wt% alkene compounds, based on the total weight of the biocrude; and (b) cracking the biocrude resulting in a cracked product; or (c) catalytically cracking the biocrude at 350 degrees C or lower. INDEPENDENT CLAIMS are:    (1) a method for cracking a hydrocarbon feedstock produced by the microorganism, comprising: (a) obtaining the hydrocarbon feedstock from the microorganism, where the hydrocarbon feedstock includes greater than 50 wt% C19-C31 compounds, based on the total weight of the biocrude, or where the hydrocarbon feedstock includes C19-C31 hydrocarbons having at least one alkene moiety; and (b) catalytically cracking the hydrocarbon feedstock resulting in a cracked product;    (2) a method for making a biofuel, comprising: (a) culturing the recombinant microorganism engineered to produce biocrude under conditions sufficient to produce biocrude; and (b) catalytically cracking the biocrude to produce the biofuel;    (3) a method comprising: (a) obtaining the biocrude produced by the recombinant microorganism; and (b) cracking the biocrude resulting in the cracked product;    (4) a method comprising: (a) obtaining the hydrocarbon feedstock produced by the recombinant microorganism; and (b) cracking the hydrocarbon feedstock resulting in the cracked product;    (5) a mixture comprising: (a) the cracked product; and (b) at least one other fuel component; and    (6) a biofuel mixture produced from the biocrude, where the biofuel includes a gasoline fraction that distills (at 1 atm) at 20-210 degrees C, or at 170-290 degrees C, or at 180-320 degrees C; or where the biofuel includes a C5-C10 fraction having a boiling point (at 1 atm) of 30-180 degrees C, or where the biofuel includes a C8-C14 fraction having a boiling point (at 1 atm) of 120-260 degrees C, or where the biofuel includes and a C14-C18 fraction having a boiling point (at 1 atm) of 230-320 degrees C.