Fuel E-85 (85% Ethanol)
The 8th digit of your vehicle identification number (VIN)
shows the code letter or number that identifies your
engine. You will find the VIN at the top left of the
instrument panel. See Vehicle Identification
Number (VIN) on page 5-113.
If your vehicle has the 5.3L V8 engine (VIN Code Z only),
you may use either regular unleaded gasoline or ethanol
fuel containing up to 85% ethanol (E-85); also see Fuel
on page 5-5. In all other engines, including the 5.3L V8
(VIN Code T), use only regular unleaded gasoline.
Only vehicles that have the 5.3L V8 engine (VIN Code Z)
may use 85% ethanol fuel (E-85). General Motors
encourages the use of E-85 in vehicles that are designed
to use it. The ethanol in E-85 is a “renewable” fuel,
meaning it is made from renewable sources such as corn
and other crops.
Many service stations will not have an 85% ethanol
fuel (E-85) pump available. The U. S. Department
of Energy has an alternative fuels website
(http://www.afdc.doe.gov/refueling_mapsite.shtml) that
can help you find E-85 fuel. Those stations that do have
E-85 should have a label indicating ethanol content.
Do not use the fuel if the ethanol content is greater than
85%. Your vehicle may not operate properly if the ethanol
content is greater than 85%.
At a minimum, E-85 should meet ASTM
Specification D 5798.
To insure quick starts in the wintertime, the E-85 fuel
must be formulated properly for your climate according
to ASTM specification D 5798. If you have trouble
starting on E-85, it may be because your E-85 fuel is
not properly formulated for your climate. If this happens,
switching to gasoline or adding gasoline to your fuel
tank may improve starting. Your vehicle is designed to
accommodate a mixture of gasoline and E-85 fuel.
For good starting and heater efficiency below
32°F (0°C), the fuel mix in the fuel tank should contain
no more than 70% ethanol.
5-7
Summary of Contents for 2004 Yukon XL
Page 5: ...These are some examples of symbols that may be found on the vehicle v...
Page 6: ...Model Reference This manual covers these models Yukon Yukon XL Extended Model vi...
Page 63: ...Yukon XL Second Row Seat Bucket Seats Similar Third Row Bench Seat 1 57...
Page 161: ...NOTES 3 3...
Page 162: ...Instrument Panel Overview 3 4...
Page 378: ...NOTES 4 80...
Page 394: ...When you open the hood on the VORTEC 8100 V8 engine you ll see the following 5 16...
Page 498: ...5 120...
Page 522: ...Engine Drive Belt Routing V6 Engines V8 Engines 6 18...