![Chevrolet 2007 Avalanche Owner'S Manual Download Page 443](http://html.mh-extra.com/html/chevrolet/2007-avalanche/2007-avalanche_owners-manual_2597030443.webp)
Gasoline Octane
Use regular unleaded gasoline with a posted
octane rating of 87 or higher. If the octane rating
is less than 87, you may notice an audible
knocking noise when you drive, commonly referred
to as spark knock. If this occurs, use a gasoline
rated at 87 octane or higher as soon as possible.
If you are using gasoline rated at 87 octane or
higher and you hear heavy knocking, your engine
needs service.
Gasoline Specifications
At a minimum, gasoline should meet
ASTM specification D 4814 in the United States
or CAN/CGSB-3.5 in Canada. Some gasolines
may contain an octane-enhancing additive
called methylcyclopentadienyl manganese
tricarbonyl (MMT). General Motors recommends
against the use of gasolines containing MMT. See
Additives on page 444
for additional information.
California Fuel
If your vehicle is certified to meet California
Emissions Standards, it is designed to operate on
fuels that meet California specifications. See the
underhood emission control label. If this fuel is not
available in states adopting California emissions
standards, your vehicle will operate satisfactorily on
fuels meeting federal specifications, but emission
control system performance may be affected. The
malfunction indicator lamp may turn on and your
vehicle may fail a smog-check test. See
Malfunction
Indicator Lamp on page 250
. If this occurs, return to
your authorized GM dealer for diagnosis. If it is
determined that the condition is caused by the type
of fuel used, repairs may not be covered by your
warranty.
443
Summary of Contents for 2007 Avalanche
Page 6: ...These are some examples of symbols that may be found on the vehicle 6 ...
Page 22: ...Put someone on it Get it up to speed Then stop the vehicle The rider does not stop 22 ...
Page 201: ... NOTES 201 ...
Page 202: ...Instrument Panel Overview 202 ...
Page 354: ... NOTES 354 ...
Page 568: ... NOTES 568 ...
Page 587: ...Engine Drive Belt Routing 587 ...
Page 612: ... NOTES 612 ...