HiTEC® 398

GL-5 and Limited Slip Performance Additive
To inquire about availability in other regions or to find out more contact your Afton Representative.

Key Performance Benefits

  • Limited slip and standard axle applicability
  • Thermal and oxidative stability
  • Seal compatibility
  • Extreme pressure protection and durability
  • Copper corrosion protection
  • Soluble in Group I and II base stocks
  • Excellent handling and pump-ability


HiTEC® 398 is a premium automotive gear performance additive. It is designed for axles having limited slip traction control, but is also suitable for use in standard axles. it is engineered for both mineral and synthetic base stocks.

Treat Rate and Claim


Typical Characteristics

MMT is extremely photosensitive and decomposes rapidly when exposed to light. The half life of MMT vapor in air is less than one minute when exposed to light. Photolytic action converts the organic compound to a mixture of non-hazardous manganese oxides, carbonates and organics derived from methylcyclopentadiene.

Handling Information

Max Handling Temp: 40°C
Shelf life: 24 months @ ambient temperature