Fuel E85 (85% Ethanol)
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 616.
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
on page 496. In all other engines, use only the
unleaded gasoline described under Gasoline
Octane on page 497.
Only vehicles that have the 5.3L V8 engine (VIN
Code 0) or the 5.3L V8 engine (VIN Code 3) can
use 85% ethanol fuel (E85). We encourage the use
of E85 in vehicles that are designed to use it. The
ethanol in E85 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 (E85) pump available. The U. S. Department of
Energy has an alternative fuels website
(www.eere.energy.gov/afdc/infrastructure/
locator.html) that can help you find E85 fuel. Those
stations that do have E85 should have a label
indicating ethanol content. Do not use the fuel if the
ethanol content is greater than 85%.
At a minimum, E85 should meet ASTM
Specification D 5798. By definition, this means
that fuel labeled E85 will have an ethanol content
between 70% and 85%. Filling the fuel tank
with fuel mixtures that do not meet ASTM
specifications can affect driveability and could
cause the malfunction indicator lamp to come on.
To ensure quick starts in the wintertime, the E85
fuel must be formulated properly for your climate
according to ASTM specification D 5798. If you
have trouble starting on E85, it could be because
the E85 fuel is not properly formulated for your
climate. If this happens, switching to gasoline or
adding gasoline to the fuel tank can improve
starting. 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. It is best
not to alternate repeatedly between gasoline and
E85. If you do switch fuels, it is recommended that
you add as much fuel as possible — do not add
less than three gallons (11 L) when refueling. You
should drive the vehicle immediately after refueling
for at least seven miles (11 km) to allow the vehicle
to adapt to the change in ethanol concentration.
499
Summary of Contents for 2007 Silverado
Page 6: ...These are some examples of symbols that may be found on the vehicle 6 ...
Page 24: ...Put someone on it Get it up to speed Then stop the vehicle The rider does not stop 24 ...
Page 114: ... NOTES 114 ...
Page 208: ... NOTES 208 ...
Page 212: ...Instrument Panel Overview Instrument Panel Overview Base Uplevel version 212 ...
Page 376: ... NOTES 376 ...
Page 647: ...Engine Drive Belt Routing A Air Conditioning Compressor V6 Engines V8 Engines 647 ...