How to Become Licensed
It's easy to become licensed!

The additive companies create additive formulations and conduct testing, ultimately receiving TOP TIER™ approval.

The fuel retailer licensee agrees to purchase fuel treated with a TOP TIER™ additive at the correct concentration and display the logo.

Step 1: Contact Us
Use the Contact Us form found here to contact the Center for Quality Assurance to obtain the forms and information for becoming a TOP TIER™ Licensee. The additive and treat rate forms shown below can be used with Steps 2 & 3 to help communicate with your fuel terminal or additive company. These forms become Appendix B of the TOP TIER™ license agreement.

For TOP TIER™ Diesel Fuel qualification, provide information on use of 10 micron filter for the low flow dispenser pumps and 30 microns or lower size filter for high flow dispenser pumps.

TOP TIER™ Gasoline Appendix B Additive and Treat Rate Declaration
TOP TIER
 Diesel Appendix B Additive and Treat Rate Declaration

Step 2: Confirm TOP TIER™ Detergent Availability at Terminal(s)
Contact your fuel supplier terminal to inquire about available TOP TIER™ detergent formulations and from which additive company they are supplied. Approved TOP TIER™ additive packages are available off the shelf. If your terminal does not supply TOP TIER™ detergency gasoline or diesel fuel, contact us to arrange an approved additive company to work with your terminal.  

Step 3: Fill in Appendix B - Additives and Treat Rates
Contact your fuel supplier, distributor, or terminal to obtain the additive treat rates and performance testing data for the TOP TIER™ Detergent Gasoline or TOP TIER™ Diesel Fuel package at your terminal.

Step 4: Complete and Sign License Agreement
Complete and sign the TOP TIER™ license agreement, which includes verification of your exact detergency package type and treat rate for use at your service stations. Note that the diesel program requires adherence to Housekeeping to minimize contamination from particulates and water in the vehicle's fuel system.

Step 5: Obtain TOP TIER Fuel at all Locations
Obtain gasoline or diesel fuel containing your exact additive package type and treat rate from terminals supplying your service stations. 

Step 6: Display TOP TIER™ Logo
Prominently display the TOP TIER™ logo at your service station. TOP TIER™ Diesel Fuel logo must be clearly displayed at the pump.

Upon completion of Steps 1 - 6 above, your licensed brands will be listed on the TOP TIER™ website brands pages.

TOP TIER™ Detergent Gasoline Licensing

TOP TIER™ Gasoline Appendix B Additive and Treat Rate Declaration

All EPA approved additives can be up-treated to meet the TOP TIER™ treat rate. https://www3.epa.gov/otaq/fuels1/ffars/web-detrg.htm

Retailers are required to:

  •  Meet the minimum TOP TIER™ Detergent Gasoline standard. 
  • Sell TOP TIER™ Detergent Gasoline for all grades and at all stations if you are a gasoline retailer.

TOP TIER™ Diesel Fuel Licensing

TOP TIER™ Diesel Appendix B Additive and Treat Rate Declaration

Retailers are required to meet the minimum TOP TIER™ Diesel Fuel standard.

For TOP TIER™ Diesel Fuel qualification, provide information on use of 10 micron filter for low flow dispenser pump and 30 microns or lower size filter for high flow dispenser pump.

Additive Companies & Terminals

Contact Us to register your additives with the program.