OEMs created and continue to oversee and monitor the TOP TIER™ Fuel Program and its effectiveness. The Program is a collaboration among vehicle and engine manufacturers (OEM Sponsors) intended to create a winning situation for OEMs, fuel retailers and vehicle owners.

Through the TOP TIER™ Programs, Sponsors are able to create and recommend a standard by which they can make fuel quality improvements to meet the demands of ever-changing engine technology. Fuel retailers voluntarily join the Program to be recognized for supplying fuel that meets the TOP TIER™ requirements. The vehicle or equipment operator ultimately benefits when critical components of the engine stay cleaner and performance-reducing deposits are kept at a minimum. Vehicle customer satisfaction is the ultimate goal of the TOP TIER™ Program.