威达利”润滑油（Shell Vitrea Oil） ? 应用于需要纯矿物油，中至轻度负荷的机械循环及密封式润滑系统，例如： 普通轴承及滚动轴承 密封式的正齿轮箱，螺旋齿轮箱，斜（伞形）齿轮箱及蜗齿轮箱。 机械工具的循环系统。 ? 适用于各种适用于各种蒸汽涡轮及直立式水涡轮，而所需的润滑油粘度比Shell“多宝”T 涡轮机油为高。 ? Shell“威达利”9特别适用于高速锭子。 ? Use in recirculating and other enclosed oil systems, where the operating conditionds are not severe enough to demand the use of additive-treated oils, lide: Plain and rolling element bearings. Enclosed spur, helical, bevel & worm gears. Machine tool circulatory systems. ? Shell Vitrea oils which have viscosities higher than those of Shell Turbo Oils T are recommended for steam turbines and vertical water turbines. ? High speed spindle (Shell Vitrea 9 only) ? 能兼容绝大部份用作油封的原料。 ? 提供优良的抗氧化特性，改良了的分水性及优良的低温流动性。 ? 除Shell“威达利”9为一低粘度指数的环烷基润滑油外，其他均能提供高粘度指数。 ? Excellent compatibility with the most commonly used sealing materials ? Provide good oxidation stability,improved demulsibility and also good low temperature flow characteristics. ? All provide a natural high viscosity index except Shell Vitrea 9, which is a naphthenic oil with a low viscosity index