STARFIRE FULL SYNTHETIC GL-5 GEAR LUBRICANTS are multi-purpose lubricants designed for service in automotive and heavy duty applications. Starfire Full Synthetic GL-5 Gear Lubricants are formulated with synthetic base stocks and a sulfur-phosphorus extreme pressure additive package with friction modifier, which provides excellent thermal and oxidative stability, as well as anti-foam, anti-rust and anti-corrosion protection and have excellent load carrying capabilities. 
APPLICATIONS • API GL-5, GL-4 Service Designations as well astheMIL-PRF-2105D and MIL PRF 2105E and is suitable for use in limited slip differentials. • Mack GO-H & GO-J and Proposed PG-1/PG-2 Service Designations, Scania STO 110, Meritor -076N (75W90), and Mentor-076M (80W140) • For use when extreme pressure (EP) gear oils are required: In all heavy duty truck differentials - In all domestic automobile differentials and some manually shifted transmissions- In heavy duty manually shifted truck transmissions requiring API MT 1 performance-In oil lubricated wheel bearings. 
BENEFITS • Provides excellent protection against wear und er extreme pressure and high or quiet operation • High resistance to thermal breakdown • Helps prevent foaming, rust, and corrosion • Smooths and quiets operation.