Prius L4-1.5L (1NZ-FXE) (Hybrid) (2003)
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Engine Oil: Fluid Type Specifications
New standard for engine oil, GF-4. See TSB EG018-06 032906 for additional information.
Engine Oil Type
GRADE .......................................................................................................................... API grade SL Energy-Conserving or ILSAC multigrade engine oil
VISCOSITY: ..................................................................................................................................................................................................... SAE 5W-30
Note: The correct oil viscosity and fill level are critical for the proper performance of the 1NZ-FXE engine installed in 2001-2005 model year Prius
vehicles. Incorrect engine oil viscosity or improper fill level may result in a M.I.L. "ON" condition (most common Diagnostic Trouble Code P3191
"Engine Does Not Start"). See TSB EG050-04.
