Lubrication
Special Synthetic GL-4 gear oil is required for proper operation and lifespan of the carbon composite gear synchronizers.
These are the only lubricants recommended by New Venture Gear for the NV4500:
- 75W-90 Castrol Syntorque Synthetic
- Mopar Synthetic Manual Transmission Lubricant Mopar P/N 4874459 (Material Specification 9070)
- GM Goodwrench® Synthetic Manual Transmission Fluid (GM Part No. U.S. 12346190, in Canada 10953477)
Read more about this topic: New Venture Gear 4500 Transmission