HiTEC® 4678

Diesel Performance Additive

Key Performance Benefits

The injectors are kept clean and free from deposits resulting in:


  • Increased fuel economy
  • Improved power and acceleration
  • Reduced emissions
  • Enhanced engine life

Other benefits include:

  • Reduced tank filling time
  • Minimized forecourt spillage
  • Good corrosion protection
  • Combustion chamber deposit control
  • Optimised storage - through cascadeable performance
  • Effective in biodiesel blends


HiTEC® 4678 diesel performance additive incorporates Afton’s advanced detergent technology to maximize your diesel’s performance, delivering improved fuel economy and reduced emissions.

HiTEC® 4678 additive dramatically reduces foaming during tank filling as well as providing excellent corrosion protection for all engine parts.

Recommended Dosage

HiTEC® 4678 will typically be used at the regular dose rate where it provides good all round protection. If used at the higher premium treat rate it will also deliver a demonstrable reduction in emissions and fuel consumption. When used at the economic treat rate, a basic level of protection will be provided.

Typical Characteristics

Handling Information

Max Handling Temp: Ambient temperature
Shelf Life: 18 months at ambient temperature