Universal synthetic lubricant, procedure and product obtained by this procedure to replace lost sulfur lubrication when fuels are used for low sulfur diesel engines

A universal synthetic additive for diesel fuels intended to improve lubrication, which contains: alpha-olefins, low-odor aromatic solvents; and at least one base oil chosen from the group of base oils formed by the highly hydroisomerized base oils and the severe hydrocracked base oils HT, in which the alpha-olefins are present in an amount of 5 to 30 percent by weight; low odor aromatic solvents are present in an amount of 3 to 27 percent by weight; and said at least one base oil is present in an amount of 0.5 to 15 percent by weight