TAREX Blu 5W-20 C3 Full Synthetic motor oil is a state of the art, advanced technology motor oil providing the highest level of engine protection available, even under the most severe operating conditions. Formulated with a special package of low sulphated ash, Phosphorus and Sulphur to resist filter plugging for diesel particulate filters. It provides exceptional resistance to high temperature oxidation thickening and prevents sludge formation commonly caused by moisture and combustion by-products. The exceptionally high viscosity index minimizes cold weather oil thickening, reducing battery drain and engine wear even at subzero startup temperatures.