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:
Brake System External Leak Inspection
Warning: Refer to Brake Fluid Irritant Warning.
Caution: Refer to Brake Fluid Effects on Paint and Electrical Components
Caution.
In order to inspect for external brake fluid leaks, first inspect the fluid
level in the master cylinder.
While a slight brake fluid level drop c ...
Disc Brake System Description and Operation
System Component Description
The disc brake system consists of the following components:
Disc Brake Pads
Applies mechanical output force from the hydraulic brake calipers to
friction surfaces of brake rotors.
Disc Brake Rotors
Uses mechanical output force ap ...
Camshaft Cover Replacement
Camshaft Cover Replacement
Callout
Component Name
Preliminary Procedures
Remove the ignition coil. Refer to Ignition Coil Replacement.
Remove the PCV hose. Refer to Positive Crankcase Ventilation Hose/Pipe/Tube
Replac ...
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