Engine Oil Additives/Engine Oil Flushes
Do not add anything to the oil.
The recommended oils with the dexos specification and displaying the dexos certification mark are all that is needed for good performance and engine protection.
Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty.
See also:
Security Light
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If the system is working normally, the indicator light turns off. If it does not come on, have the vehicle serviced by your deale ...
Tailgating Alert
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The Inside
Here's where GM has really outdone itself in its new SUVs. Like the Tahoe,
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