Mobilube SHC 75W-90 and 80W-140 are fully synthetic drivetrain lubricants engineered to meet the most demanding extended drain and OEM warranty requirements. These products are designed for use in heavy duty drivetrains that require gear lubricants with excellent load-carrying capability and where extreme pressures and shock loading are expected The state-of-the-art technology in Mobilube SHC 75W-90 and 80W-140 delivers unequalled performance for low and high temperature applications, including outstanding oxidation stability, wear protection, corrosion resistance, improved shear stability, extended service capability, and excellent fuel economy.

Mobilube SHC, also known as Mobil Delvac Synthetic Gear Oil, is the factory fill from Porsche on factory cars and is different from Mobil 1 Synthetic gear lube typically sold at local auto parts stores. We recommend this gear lubricant in G50 and later manual gearboxes (or any gearboxes calling for a GL5 lubricant) for both aircooled and watercooled Porsches with or without limited-slip differentials. Although also compatible with earlier Porsche gearboxes, Swepco 201 is a better choice for these gearboxes in our personal experience (including 901 and 915, as well as VW manual gearboxes).

These products meet API MT-1/GL-5 EP gear oil service classifications and are MIL-PRF-2105E quality level. The outstanding performance of these products is confirmed by their approvals for use in axles covered by Eaton Roadranger (E500TM) and ArvinMeritor Extended Warranties of 750,000 miles, with extended oil drains of 500,000 miles. They are also approved by Mack against GO-J Plus (75W-90) and GO-J (80W-140) extended service classifications.

The performance capabilities of today's heavy duty on- and off-highway equipment have vastly improved in terms of load, torque, speed, and reliability through innovative powertrain designs. These designs have increased demands on axle lubricants, requiring them to deliver higher levels of performance. For heavy duty axles, friction control, wear protection, thermal stability, shear stability, rust and corrosion prevention, and seal protection are features that must be balanced to provide extended gear and seal life, smooth operation, improved fuel economy and high load, high torque capability over a wide range of applications.

Please call for 80W-140 Mobilube SHC Delvac 1 synthetic gear lubricant is currently unavailable in gallon sizes.