Hydrosynthetic lubricating oil

摘要: Hydrosynthetic lubricating oil comprising, in combination, a) a hydrocracked base obtained by atmospheric distillation of crude oil, followed vacuum the residue and hydrocracking under 150 bars hydrogen at approximately 400 DEG C on stationary bed presence metal catalysts, which has viscosity index 120 to 135, NOACK volatility lower than or equal 22 %, measured according NFT method 60 161, 40 between 7 46 mm /s an oxidation stability 95 ASTM standard D 943-76 (TOST) 8000 10,000 hours, b) polyisobutene liquid phase polymerisation mixture olefins containing 4 carbon atoms, rich isobutene free from conjugated double bonds, 100 1000 c) extreme pressure additive consisting multifunctional dopes. Application lubrication gears, roller bearings smooth high speed train bogies, air compressors, hydraulic circuits engines.