HiTEC® 4661

Diesel Performance Additive
To inquire about availability in other regions or to find out more contact your Afton Representative.

Key Performance Benefits

HiTEC® 4661 has been designed to deliver Supreme “Clean-up” ensuring that the injectors are cleaned and kept free from deposits resulting in:
  • Rapid increase in fuel economy in both HDD and PC
  • Improved power and acceleration
  • Reduced emissions
  • Enhanced engine life
  • Advanced performance in industry tests
Other benefits include:
  • A four to six increase in cetane number
  • Excellent corrosion protection
  • Superb anti-foam performance in biodiesel blends
  • Biodiesel performance up to B10


HiTEC® 4661 diesel performance additive delivers our most advanced Greenclean™ detergent technology, in combination with a significant cetane improver boost. Greenclean™ detergent technology has proven “Keep-clean” and “Clean-up” performance for both types of diesel injector deposits impacting vehicles today: Traditional Coking Deposits and ULSD Internal Deposits.

Recommended Dosage

Depending on your performance needs the treat-rate of HiTEC® 4661 additive can be modified to achieve the performance tier that you are targeting, from Optimal “Keep-clean” to Supreme “Clean-up”. Treat-rates may vary depending on base fuels.

Typical Characteristics

Handling Information

Max Handling Temp: Ambient temperature
Shelf Life: 30 months at ambient temperature

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