Changes coming to Cenex® gasoline

Beginning January 1, 2027, Cenex® gasoline will transition to the new TOP TIER™+ gasoline standard. TOP TIER+ builds on the benefits of the current TOP TIER™ standard and includes additional performance testing for today’s engine technologies including gasoline direct-injection fuel systems.

Why TOP TIER+?

TOP TIER+ is designed for today’s engine technologies. Its standards include additional engine tests intended to support cleaner fuel injectors, optimal emissions, and efficient combustion.

What to expect:

Between January 1 – March 31, 2027, a third-party representative will visit all Cenex locations to update product identification decals (PIDs) on dispensers.

  • A letter of authorization will be presented to staff before any work begins
  • The representative will remove old TOP TIER PIDs and apply new TOP TIER+ PIDs
  • Dispenser skirt imaging will not be updated
  • The PIDs and trip will occur at no cost to retailers*
  • No action is required from retailers**

*Wayne Anthem dispensers may require ASC involvement. Those dispensers will be addressed at the conclusion of the PID updates.

**PID updates are not optional. Work will be executed once the letter of authorization is provided to staff.

Questions?

Please contact your Cenex representative or refinedfuelsmarketing@chsinc.com with questions about the TOP TIER™+ transition.