Toyota Tundra Service Manual: Diagnostic Trouble Code Chart

Diagnosis System

Dtc Check / Clear

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Toyota Tundra Owners Manual > Specifications: Fuel information
Gasoline engine You must only use unleaded gasoline. Select octane rating 87 (Research Octane Number 91) or higher. Use of unleaded gasoline with an octane rating lower than 87 may result in engine knocking. Persistent knocking can lead to engine damage. At minimum, the gasoline you use should meet ...