Section 00-03: Maintenance and Lubrication | 1996 F-150, F-250, F-350, F-Super Duty and Bronco Workshop Manual |
NOTE: Do not add gasoline, gasohol, alcohol or cetane improvers to diesel fuel. Damage to the fuel injection system may result.
The 7.3L diesel engine is designed to use number 1-D or 2-D diesel fuel only. At temperatures below -7°C (20°F), number 1-D or winter blend number 2-D fuel is recommended.