An additive specifically developed for manual transmissions and differential gears. It significantly reduces wear and decreases temperature peaks. Exceptionally well-suited for use in manual, transfer and differential transmissions. Also suited for use in mechanical steering systems. Add Pro-Line Gear Oil Additive to the gear oil - mixing takes place automatically during operation. The product is suitable for both mineral and synthetic-based gear oils. One tube is sufficient for up to 15 liters of gear oil. In problematic cases, we recommend adding a 2 % dosage to the gear oil. Note: Not suited for use in motorcycles with wet clutches, fully automatic transmissions and self-locking differential transmissions!