It shall be noted that in order to increase the ratio of alternative source derived components, we performed such experiments also in which the feedstock contained 2–5% gas oil boiling point product fraction of a thermal cracking process (550 C and 6 bar) with waste polypropylene feedstock. The obtained hydrotreated intermediate product had the same quality as the previously described products. However the CFPP value of these was 3–5% higher, which was due to the high paraffin and olefin content (84% total) of the feedstock component. At the applied favourable process parameters, the olefin hydrocarbons were practically hydrogenated completely (iodine number of products: