PennGrade 1, Gear Oil, Hypoid Gear, 75w/90

PennGrade 1? Full Synthetic Hypoid Gear/Blower Racing Lubricant is a specially formulated 100% synthetic, SAE 75W-90 oil designed for use with self-contained systems where SAE 75W, SAE 80W-90 or SAE 90 grade gear oils are recommended. It is suitable for use in Roots and Lysholm Screw type superchargers and may be used in manual transmissions and hypoid differentials where high shock loading is a concern.