Chevrolet Sonic Owner's Manual: 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 octane or higher as soon as possible. If heavy knocking is heard when using gasoline with a higher octane rating, the engine needs service.
Use of Seasonal Fuels
Use summer and winter fuels in the appropriate season. Driving or starting could be affected if the incorrect fuel is used. Drive the vehicle with the engine running until the fuel is a half tank or less, then refuel with the current seasonal fuel.
Prohibited Fuels
Gasolines containing oxygenates, such as ethers and ethanol, as well as reformulated gasolines are available in some cities. If these gasolines comply with the previously described specification, then they are acceptable to use. However, E85 and other fuels containing more than 15% ethanol must be used only in FlexFuel vehicles.
Caution
Do not use fuel containing methanol. It can corrode metal parts in the fuel system and also damage plastic and rubber parts. That damage would not be covered under the vehicle warranty.
Some gasolines that are not reformulated for low emissions can contain an octane-enhancing additive called methylcyclopentadienyl manganese tricarbonyl (MMT). Do not use gasolines with MMT as they can reduce spark plug life and affect emission control system performance. The malfunction indicator lamp may turn on. If this occurs, see your dealer for service.
Fuel
Use of the recommended fuel is an important part of the proper maintenance of
this vehicle. When driving in the U.S., to help keep the engine clean and maintain
optimum vehicle performance, we rec ...
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 th ...
Other materials:
Rear Seat Head Restraint Replacement
Rear Seat Head Restraint Replacement
Callout
Component Name
1
Rear Seat Head Restraint
Preliminary Procedures
Depress the large button on the head restraint guide and raise the
head restraint to the full up p ...
Wheel Alignment - Steering Wheel Angle and/or Front Toe Adjustment
Ensure that the steering wheel is set in a straight ahead position.
Loosen the tie rod jam nut (1).
Adjust the toe to specification by turning the inner tie rod (2). Refer
to Wheel Alignment Specifications.
Caution: Refer to Fastener Caution.
Tighten the t ...
Clutch Master Cylinder Replacement
Removal Procedure
Remove the battery tray. Refer to
Battery Tray Replacement.
Remove as much brake fluid out of brake fluid reservoir
as possible.
Remove the clutch master cylinder reservoir hose (1)
from the clutch master cylinder.
Unclip th ...
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