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 328
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 206
. 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.
Additives
To provide cleaner air, all gasolines in the United
States are now required to contain additives
that will help prevent engine and fuel system
deposits from forming, allowing your emission
control system to work properly. In most cases,
you should not have to add anything to your fuel.
However, some gasolines contain only the
minimum amount of additive required to meet
U.S. Environmental Protection Agency regulations.
To help keep fuel injectors and intake valves
clean, or if your vehicle experiences problems due
to dirty injectors or valves, look for gasoline that
is advertised as TOP TIER Detergent Gasoline.
Also, your dealer has additives that will help
correct and prevent most deposit-related problems.
328
Summary of Contents for Lucerne 2007
Page 6: ...These are some examples of symbols that may be found on the vehicle 6 ...
Page 90: ... NOTES 90 ...
Page 154: ... NOTES 154 ...
Page 157: ... NOTES 157 ...
Page 158: ...Instrument Panel Overview 158 ...
Page 336: ...When you open the hood on the 4 6L V8 engine here is what you will see 336 ...
Page 438: ... NOTES 438 ...
Page 454: ...Engine Drive Belt Routing 3 8L V6 Engine 4 6L V8 Engine 454 ...
Page 480: ... NOTES 480 ...