雪佛龙公司全球基础油执行总裁在2008年11月中旬召开的美国NPRA国际润滑油和石蜡会议上表示,Ⅱ类基础油在许多应用中可挑战Ⅲ类基础油,Ⅱ类基础油在一些主流产品中应用可改进配方的经济性。Ⅱ类基础油和Ⅲ类基础油在美国存在较大的价差,最低档的Ⅱ类基础油为4.39美元/USgal(1364美元/t),最 At the NPRA International Lubricating and Paraffin Conference held in mid-November 2008, Chevron CEO Global Base Oil said Class II base oils may challenge Type III base oils in many applications, with Type II base oils in some mainstream The application of the product improves the economics of formulation. Grade II base oils and Grade III base oils have large spreads in the United States, with the lowest grade of Grade II base oils being US $ 4.39 / USgal (US $ 1,364 / t)