HiTEC® 4691

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

Key Performance Benefits

HiTEC® 4691 diesel performance additive delivers our most advanced Greenclean™ detergent technology, designed to give improved injector deposit control in both conventional and modern diesel vehicles. Greenclean™ detergent technology has proven “Keep-clean” and “Clean-up” performance for both types of diesel injector deposits impacting vehicles today:
  1. Traditional Coking Deposits
  2. ULSD Internal Deposits
The injectors are kept clean and free from deposits resulting in:
  • Increased fuel economy
  • Improved power and acceleration
  • Reduced emissions
  • Enhanced engine life
  • Optimal performance in industry tests
    • DW-10 < 2% power loss
    • XUD-9 < 50% flow loss
Other benefits include:
  • Excellent corrosion protection
  • Superb anti-foam performance in biodiesel blends
  • Biodiesel performance up to B10

Recommended Dosage

Depending on your performance needs the treat-rate of HiTEC® 4691 additive can be modified to achieve the performance tier that you are targeting, from Optimal “Keep-clean” up to Supreme “Clean-up”. Treat-rates may vary depending on base fuels.


Typical Characteristics


Handling Information

Max Handling Temp: Ambient temperature
Shelf Life: 36 months at ambient temperature