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2001 On-Line Cooling System Cleaner

200164 2001 Cleaner On-Line Cooling System Cleaner jpg

Penray 2001 On-Line Cooling System Cleaner cleans diesel engine cooling systems while they remain in service. This liquid product is an excellent alternative to in-shop cleaning for engines having only light scale and limited corrosion product formation. 2001 Cleaner is ideal for periodic on-the-road cleaning, as it removes harmful mineral scale and oxide deposits. For engines with green slime, excessive scaling, or heavy oil deposits, Penray recommends the 2015 Twin Pac.



  • Cleans diesel engine cooling systems
    while remaining in service
  • Add to cooling system every 20,000
    miles before drain and fill
  • Can also be used as a 20-minute flush
  • Removes scale, corrosion, mineral and
    oxide deposits
  • Cost effective, time-saving alternative to off-line cleaning
  • Safe for seals and metals
  • Safe for use with all coolant formulations

One half gallon of 2001 Cleaner treats eight gallons.

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Part # Quantity Net Contents Container
200164 6 / Case 1/2 Gallon  Jug
200105 1 5 Gallons  Pail
200155 1 55 Gallons  Drum