Lubricant composition and use thereof

A lubricant composition comprising

• an oil-soluble polyalkylene glycol, as a base oil component;
• an ester compound selected from the group of natural esters and synthetic esters, and combinations thereof, as another base oil component;
• and
• an additive mixture comprising an antioxidant and an anticorrosive,
• wherein the anticorrosive is selected from neutral alkali metal and alkaline earth metal salts of sulfonic acids and derivatives and combinations thereof, wherein the neutral alkali metal and alkaline earth metal salts are Na, Ca, K and Mg salts,
• wherein the anticorrosive has a total acid number (TAN) of 30 mg KOH/g or less,
• wherein the oil-soluble polyalkylene glycol has a molecular weight Mn of 500 g/mol or more to 1400 g/mol or less,
• wherein the oil-soluble polyalkylene glycol and the ester compound are the only base oil components comprised in the lubricant composition,
• wherein the weight ratio of oil-soluble polyalkylene glycol to the ester compound based on the total weight of those two base oil components in the lubricant composition is in the range from 15:85 to 70:30,
• wherein the lubricant composition does not comprise an overbased alkali metal or alkaline earth metal salt,
• wherein the oil-soluble polyalkylene glycol is a copolymer selected from polybutylene oxide-polypropylene oxide copolymers, polybutylene oxide-polyethylene oxide copolymers and polybutylene oxide-polypropylene oxide-polyethylene oxide copolymers, and combinations thereof,
• wherein the amount of oil-soluble polyalkylene glycol is 5-70% by weight,
• wherein the amount of the antioxidant is in the range of 0.05-3.5% by weight, and
• wherein the amount of the anticorrosive is in the range of 0.05-3.5% by weight.