Adding Equipment To The Outside Of; Your Vehicle; Fuel - GMC Yukon 2007 Owner's Manual

Your vehicle has an airbag system. Before
attempting to do your own service work, see
Servicing Your Airbag-Equipped Vehicle on
page 110.
You should keep a record with all parts receipts
and list the mileage and the date of any service
work you perform. See Maintenance Record
on page 592.

Adding Equipment to the Outside of

Your Vehicle

Things you might add to the outside of your
vehicle can affect the airflow around it. This may
cause wind noise and affect windshield washer
performance. Check with your dealer before
adding equipment to the outside of your vehicle.
452

Fuel

Use of the recommended fuel is an important part
of the proper maintenance of your vehicle. To
help keep the engine clean and maintain optimum
vehicle performance, GM recommends the use
of gasoline advertised as TOP TIER Detergent
Gasoline.
The 8th digit of the Vehicle Identification Number
(VIN) shows the code letter or number that
identifies your vehicle's engine. The VIN is at the
top left of the instrument panel. See Vehicle
Identification Number (VIN) on page 565.
If your vehicle has the 5.3L V8 engine (VIN Code 0)
or the 5.3L V8 engine (VIN Code 3), you can use
either regular unleaded gasoline or ethanol fuel
containing up to 85% ethanol (E85); also see Fuel
E85 (85% Ethanol) on page 455. In all other
engines, use only regular unleaded gasoline.