International Lubricants Inc. -- Innovation, Performace, Cutting Edge Technologies






NEW: Heavy Duty 2-in-1 Coolant Treatment


Enhances ALL coolants in diesel engine applications from farm to freeway.




Provides 2-in-1 corrosion protection and temperature reduction:
  • Protects wet sleeve cylinder liners from cavitation erosion.
  • Prevents buildup of scales, deposits, and slime that cause overheating.
  • Provides 100% protection from corrosion and chemical electrolysis.
  • Significantly extends life of water pump impellers and seals.
  • Chemically engineered to reduce the surface tension of coolant, allowing it to more deeply penetrate metal surfaces at vital heat-transfer areas. This decreases operating temperatures and significantly reduces the possibility of engine overheating.

Saves time and money:
  • Eliminates the need to buy multiple products. LUBEGARD Heavy Duty Coolant Treatment is the only supplemental coolant additive that contains complete 
corrosion protection and wetting agents, all in one.
  • Reduces frequency of draining and flushing coolant.
  • Less frequent refilling of antifreeze saves money.
  • Less corrosion and damage to cooling system metals significantly lengthens the effective life of radiators, heater cores, water pumps, and engine components, 
resulting in fewer expensive failures and breakdowns.





Comes with 2 nitrite
 & freeze point test strips
 for checking coolant before and after treatment.






Our new Heavy Duty Coolant Treatment eliminates the need for multiple products. One of them is a headache remedy. 2-in-1 performance and convenience in one easy to use bottle.

LUBEGARD provides aluminum protection with newer proprietary organic technology, unlike some competitors that use outdated molybdate and phosphate for pH buffering — an ingredient that Detroit Diesel does NOT permit for use in their systems. LUBEGARD contains no phosphate, and receives across-the-board OEM acceptance.

LUBEGARD contains wetting agent ingredients, which provide engine temperature reduction performance — eliminating the need and expense of using an additional product like Red Line® Diesel Water Wetter. Testing has shown that the polysiloxane in Water Wetter polymerizes to form a nasty layer of slime within the radiator. LUBEGARD does NOT contain any polysiloxane ingredients.

For DECADES, PenCool and Fleetguard formulas have been the “gold standards” against which all others were compared. With the introduction of LUBEGARD 2-in-1 Heavy Duty Coolant Treatment, this is about to change.



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