2011 GMC Sierra 1500 Hybrid Review
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How to Inspect the Engine Air Cleaner/Filter
To inspect the air cleaner/filter, remove the filter from the vehicle and lightly
shake the filter to release loose dust and dirt. If the filter remains covered with
dirt, a new filter is required ...
Noise
One thing those shoppers might find objectionable is the noise —
specifically, wind noise and outside noise intrusion. Wind noise, an issue on
highways, wasn't extremely loud, but there was a no ...
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, commonly referred
to as spark knock, might be heard when ...





