![Spec Selekt SD 20W/40 Spec Selekt SD 20W/40](https://specol.com.pl/1517-large_default/spec-selekt-sd-20w-40.jpg)
![Spec Selekt SD 20W/40 Spec Selekt SD 20W/40](https://specol.com.pl/1517-large_default/spec-selekt-sd-20w-40.jpg)
Mineral engine oil developed for older types of gasoline engines for which the manufacturer recommends using API class oils: SD or lower. Thanks to the appropriate formula, the oil is suitable for year-round use, ensuring easy start-up at low temperatures and continuity of the oil film at high temperatures.