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"The low-temperature properties belongs to the most important parameters of diesel fuel, especially during the winter period. The unbranched paraffins (n-paraffins) form micro-crystals at the low temperatures deep below zero and they may cause significant problems in the fuel system of a car.
These complications can be magnified using a diesel fuel containing higher content of bio-components (FAME). The long chains of FAME show very similar behaviour like the n-paraffins and in this way they influence the final low-temperature properties of diesel – FAME blends. The resulting values of the standardized parameters are worse in comparison with the petroleum derived diesel. The diesel–FAME blends with higher content of FAME must be improved using the relevant additives (depressants). The content and type of FAME can influence the low-temperature properties as well as the oxidation stability.
This study is focused on the comparison of the low temperature properties and the oxidation stability of diesel–FAME blends using two different types of FAME - RME and UCOME. The content of FAME was in the levels of 0; 7; 20; 30 and 100 % V/V. The blending procedure was carried out in the laboratory scale."