Mettle Plus™ - Engine Metal Treatment

Mettle Plus™ (Metal Treatment) using moly based technology can help with the reduction of ZDDP's in today's engine oils. 

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Mettle Plus™ has stabilizing anti-oxidant's and very unique metal deactivators to assure that Mettle Plus™ performs well in engine applications and gear oils applications not changing the chemical make up of the oil.

The oil acts like a delivery truck carrying the Mettle Plus ™ to the asperities of the metals and forming a covalent, galvanic bond to the metal allowing a 2 to 4 micron penetration into the metal, creating a smooth less friction and heat. Mettle Plus™ does not layer the metal or put a film over the top of the metal, it is designed to penetrate into the metal working with ferrous particulates within the oils environment, treating the metal, not the oil.

Oil analysis has proven that when adding Mettle Plus to your lubricants, reduced cylinder and bearing wear are achieved and component life can be extended 3 to 5 times longer. 


Reduced oxidation on the oil will also allow for longer engine and component life. 


  • Gasoline or diesel engines

  • Natural Gas Engine Applications (Cat 3500 and 3600 Series) 

  • New or high mileage engines

  • Truck, Marine, and Railroad engines, Construction, Off-Road, Motorcycle and Small Engines

  • Compatible with petroleum or synthetic oils

  • Differentials (Rear and Front End Axles)

  • Manual Transmissions

  • Gear Box Applications

  • Milling Machines

  • Anywhere where friction can create heat and stress

  • Not Recommended with Automatic Transmissions or Wet Clutch Applications

  • Treatment Rate: 1:24

  • Expected Fuel Savings: 5%

  • Increases power to motorized equipment

  • Reduces operation temperatures & vibrations

  • Increased protection against high-wear debris buildup and use in extreme environments


Southern Technologies Mettle Plus should be used everywhere in metal friction applications where there are:


  • Elevated Temperatures

  • High Loads

  • Extreme pressures

  • High sliding speed and pressure

Anti-Friction Testing
Smoother running engine. Reduced vibration
Independent Test Results