2009 GMC YUKON octane

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Page 231 of 576

GMC YUKON 2009  Owners Manual This light comes on during a malfunction in one of
two ways:
Light Flashing:A mis�re condition has been detected.
A mis�re increases vehicle emissions and could
damage the emission control system on t

Page 399 of 576

GMC YUKON 2009  Owners Manual Service............................................................5-3
Accessories and Modi�cations..........................5-3
California Proposition 65 Warning.....................5-4
California Pe

Page 403 of 576

GMC YUKON 2009  Owners Manual This vehicle has an airbag system. Before attempting to
do your own service work, seeServicing Your
Airbag-Equipped Vehicle on page 1-96.
Keep a record with all parts receipts and list the mileage
and

Page 404 of 576

GMC YUKON 2009  Owners Manual Otherwise, you could damage the engine. If you are
using gasoline rated at 87 octane or higher and you
hear heavy knocking, the engine needs service.
Gasoline Speci�cations
At a minimum, gasoline shou

Page 405 of 576

GMC YUKON 2009  Owners Manual Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines might be available in
your area. We recommend that you use these gasolines,
if they comply with the speci�cation

Page 527 of 576

GMC YUKON 2009  Owners Manual This schedule is for vehicles that:
carry passengers and cargo within recommended
limits on the Tire and Loading Information label.
SeeLoading the Vehicle on page 4-33.
are driven on reasonable road s

Page 568 of 576

GMC YUKON 2009  Owners Manual Fuel (cont.)
Gage .........................................................3-50
Gasoline Octane........................................... 5-5
Gasoline Speci�cations..................................