Mobil 1 122260 5W-40 Turbo Diesel Synthetic Motor Oil - 1 Gallon (Pack of 3) Exceptional resistance to high-temperature varnish and low-temperature sludge deposits to help keep engines clean Wide viscosity range provides outstanding protection consistent with an SAE 40 grade oil at high temperatures, combined with the easy cold-start performance of a 5W rated oil Outstanding wear protection Excellent high- and low-temperature performance; Pours at temperatures as low as -53 degree Fahrenheit and protects at oil temperatures as high as 400 degree Fahrenheit Improved protection against sludge and harmful deposits; Excellent fuel economy benefits