Oil motor M14B2 (M-14B2) (GOST 12337-84) is obtained by mixing distillate and final components produced from high-sulfur or low-sulfur oils with a composition of additives.
Motor oil M14V2 (M-14V2) is used for the lubrication of small and medium-forced locomotive and automobile diesel engines running on diesel
fuel with a sulfur content of up to 0.5%.