Black plate (7,1)
Cadillac STS Owner Manual - 2011
Gasoline Specifications
At a minimum, gasoline should meet ASTM
specification D 4814 in the United States or
CAN/CGSB
‐
3.5 or 3.511 in Canada. Some gasolines
contain an octane-enhancing additive called
methylcyclopentadienyl manganese tricarbonyl (MMT).
We recommend against the use of gasolines containing
MMT. See
Additives on page 6
‑
7
for additional
information.
California Fuel
If the 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, the vehicle
will operate satisfactorily on fuels meeting federal
specifications, but emission control system performance
might be affected. The malfunction indicator lamp could
turn on and the vehicle might fail a smog
‐
check test.
See
Malfunction Indicator Lamp on page 4
‑
62
. If this
occurs, return to your authorized dealer for diagnosis.
If it is determined that the condition is caused by the
type of fuel used, repairs might not be covered by the
vehicle warranty.
Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that help prevent
engine and fuel system deposits from forming, allowing
the emission control system to work properly. In most
cases, nothing should have to be added to the 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 the vehicle
experiences problems due to dirty injectors or valves,
look for gasoline that is advertised as TOP TIER
Detergent Gasoline.
For customers who do not use TOP TIER Detergent
Gasoline regularly, one bottle of GM Fuel System
Treatment PLUS, added to the fuel tank at every engine
oil change, can help clean deposits from fuel injectors
and intake valves. GM Fuel System Treatment PLUS is
the only gasoline additive recommended by General
Motors. It is available at your dealer.
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Summary of Contents for 2011 STS
Page 6: ...Black plate 6 1 Cadillac STS Owner Manual 2011 2 NOTES vi...
Page 8: ...Black plate 2 1 Cadillac STS Owner Manual 2011 Instrument Panel 1 2...
Page 32: ...Black plate 26 1 Cadillac STS Owner Manual 2011 2 NOTES 1 26...
Page 106: ...Black plate 74 1 Cadillac STS Owner Manual 2011 2 NOTES 2 74...
Page 186: ...Black plate 80 1 Cadillac STS Owner Manual 2011 2 NOTES 3 80...
Page 364: ...Black plate 14 1 Cadillac STS Owner Manual 2011 3 6 L V6 Engine 6 14...
Page 466: ...Black plate 116 1 Cadillac STS Owner Manual 2011 Underhood Fuse Block 6 116...
Page 475: ...Black plate 125 1 Cadillac STS Owner Manual 2011 Passenger s Side 6 125...
Page 490: ...Black plate 12 1 Cadillac STS Owner Manual 2011 Engine Drive Belt Routing 3 6L V6 Engine 7 12...