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Latest Information on Additive Shortage

Global supply chain challenges are limiting the availability of the detergent additives used to meet the TOP TIER™ and TriCLEAN® gasoline performance standards. Here is the latest status for regions where CITGO locations may be affected by the national additive supply shortage. Gasoline in these areas may not meet TOP TIER and TriCLEAN detergency specifications. CITGO and suppliers are working hard to minimize the duration of additive shortages in these regions. Please check back frequently for the latest information. A statement from the TOP TIER organization is available here.

Updated: April 1, 2022

Affected Region





  Meets detergency specifications
  Insufficient additive to meet TOP TIER or TriCLEAN detergency specifications

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