Non-polymer thickened multigrade engine oils based on synthetic basestocks are provided. The SAE 5W-30, SAE 10W-30 and SAE 15W-40 engine oils are derived from hydrogenated decene-1 oligomer mixtures wherein the oligomers range from C30 up to C70+ and are present in specified proportions. Synthetic esters may be combined with the polyalphaolefin oligomer mixture. The synthetic basestocks are formulated with appropriate performance additives to obtain engine oils which meet the desired API Service Requirements for gasoline and/or diesel engine usage. In addition to specified oligomer distributions, the polyalphaolefins have specified viscosities, molecular weights and branching.
                            提供了基于合成基础油的非聚合物稠化多级发动机油。SAE 5W-30、SAE 10W-30 和 SAE 15W-40 机油来自氢化
癸烯-1 低聚物混合物,其中低聚物的范围从 C30 到 C70+,并以规定的比例存在。合成酯可与聚α烯烃低聚物混合物结合使用。合成基础油与适当的性能添加剂一起配制,以获得符合所需的 A
PI 服务要求的发动机油,供汽油和/或柴油发动机使用。除了指定的低聚物分布外,聚α烯烃还具有指定的粘度、分子量和分支。