TrailBlazer 4WD L6-4.2L VIN S (2002)
Fuel: Specifications
Gasoline Octane
Regular Unleaded Gasoline 87 Octane or Higher
It is recommended that gasoline meet specifications which
If the octane is less then 87, you may get a heavy knocking
were developed by the American Automobile Manufacturers
noise while driving. If it is bad enough, it can damage your
Association and endorsed by the Canadian Vehicle
engine.
Manufacturers Association.
