STP® Diesel Fuel Injector Treatment

Diesel fuel additives. STP Diesel Fuel Injector Treatment bottle

Helps maintain diesel engine performance by keeping fuel injectors clean and improving lubricity of diesel fuel.

Use Regularly When You Fill Up

Formulated to help prevent deposit build-up in diesel engines. Without cleaning, these deposits can harm performance, cause corrosion and waste fuel.


  • Save fuel by keeping injectors clean
  • Maintain performance by preventing deposit build-up, corrosion and rust
  • Fight fuel line freeze and wax gel formation

Usage Frequency

Use regularly when you fill up.

Take Note!

STP® Diesel Fuel Injector Treatment is specifically formulated for diesel engines.