Chevrolet Sonic Owner's Manual: Gasoline Specifications
At a minimum, gasoline should meet ASTM specification D 4814. Some gasolines contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT). We recommend against the use of gasolines containing MMT. See “Prohibited Fuels" in Recommended Fuel.
Recommended Fuel
Use regular unleaded gasoline with a posted octane rating of 87 or higher. If
the octane rating is less than 87, an audible knocking noise may be heard. If this
occurs, use a gasoline rated at 87 ...
California Fuel Requirements
If the vehicle is certified to meet California Emissions Standards, it is designed
to operate on fuels that meet California specifications. See the underhood emission
control label. If this fuel i ...
Other materials:
If No Steam Is Coming from the Engine Compartment
If an engine overheat warning is displayed but no steam can be seen or heard,
the problem may not be too serious. Sometimes the engine can get a little too hot
when the vehicle:
Climbs a long hill on a hot day.
Stops after high-speed driving.
Idles for long periods in traffic.
If the ...
Seat Belt Latch Stop Installation
Seat Belt Latch Stop Installation
Callout
Component Name
Preliminary Procedure
Locate the hole in the seat belt webbing where the original seat
belt stop button was located.
If the original hole in the seat belt webbing i ...
Heater and Air Conditioning Evaporator Case Replacement
Air Conditioning (A/C) Evaporator Case Assembly Replacement
Callout
Component Name
Preliminary Procedure
Remove the instrument panel tie bar. Refer to Instrument Panel Tie
Bar Replacement.
Remove HVAC module. Refer to Hea ...
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