Based in Lebanon, Ind., our company has Indiana roots as deep as the traditions and values of the โHoosierโ state. The D-A Lubricant Company has been the proud manufacturer of quality lubricant products since 1919. Today, the D-A Lubricant Company includes the brands PennGradeยฎ, PennGrade 1ยฎ as well as D-A Lubricants.
PennGradeยฎ Motor Oil is built from the legacy of PennGrade 1ยฎ High Performance Motor Oil, or โThe Original Green Oilยฎโ. PennGrade 1ยฎ uses a unique base oil cut from Pennsylvania Grade Crude Oil. The oil has a unique green color and the ability to stick and cling to metal parts, offering full film strength and prevent excess wear caused by dry startups. Its enhanced levels of zinc and phosphorous (ZDDP) protect vital engine components such as โflat tappet & roller camsโ, and it has been the first choice of engine builders and automotive manufacturers for decades.