Calais V6-3300 3.3L MFI VIN N (1990)
Fuel: All Technical Service Bulletins
Engines (Port Fuel Injected) - Recommended Fuels
SUBJECT
INFORMATION/RECOMMENDED FUELS FOR PORT
FUEL INJECTED ENGINES
MODELS/YEARS 1985-91 CUTLASS CIERA, CUTLASS CALAIS, EIGHTYEIGHT, NINETY-EIGHT AND TORONADO WITH 3.0L, 3.8L, 3300
OR 3800 ENGINES
NUMBER:
91-T-16
CORP.REF.NO: 006504R
DATE:
October 1990
SECTION:
6C, 6E
General Motors recommends that owners familiarize themselves with the information in their vehicle owner's manual pertaining to recommended fuels.
Some vehicle owners currently using unleaded fuel may experience a condition such as cold start stall and/or reduced cold engine performance.
It is imperative that technicians ensure the vehicle's basic engine controls and systems are performing properly. If all engine controls and systems are
performing properly, it is recommended that the vehicle owner change to a different brand of regular grade 87 octane unleaded fuel. It may require
several tank fulls of a different brand of fuel before the condition improves.
Use of fuels with an octane rating higher than 87, unless specified in the vehicle owner's manual, is not required. Use of premium grade unleaded fuel, 91
octane or higher, will not enhance the vehicles cold start quality and/or cold engine performance.
