The Penn Grade 1® Limited Slip GL-5 SAE 80W-90 Gear Oil has been specifically developed to serve as a friction modified lubricant for clutch-type, limited slip differentials, reducing slick-slip ‘chatter’ in low speed high torque operations.  It is formulated with Penn Grade base stocks, as well as a skillfully tailored additive system.  It is recommended when a SAE 80W, 90, or 80W-90 viscosity is required.


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