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PRI-27 HFO Deposit Control

PRI-27 is PRI's mid-range deposit control solution, providing increased engine reliability at reduced cost. Formulated with PRI's proprietary thermal stability technology, PRI-27 increases times between engine component overhauls while keeping the exhaust side soot-free. With a remarkable capability to reduce organic fuel sludge, PRI-27 also keeps bunker tanks and fuel systems sludge-free, providing a great increase in recovered fuel value that pays for the treatment many times over.

PRI-27 may be tank dosed at a ratio of 1:12,000. In summary, PRI-27:

  • Prevents carbonaceous engine deposits
  • Cuts sludge 30-to-60 percent
  • Reduces visible smoke on an average of 45 percent
  • Optimizes engine fuel consumption rates


For heavy fuel oils, PRI has developed three extraordinarily effective chemistries:
  • PRI-RS HFO
    Treatment for deposit, sludge and emissions control - PRI's flagship product.
  • PRI-27 HFO
    Treatment for deposit control.
  • PRI-SOLV
    For sludge control.
  • PRI-D
    Industrial diesel treatment for improved lubricity, deposit and emissions control, and long-term storage stability.
  • PRI-D
    Lubricity Testing