Fuel Additives - Cadillac SRX 2012 Owner's Manual

9-48 Driving and Operating

Fuel 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 and avoid problems due
to dirty injectors or valves, look
for gasoline that is advertised as
TOP TIER Detergent Gasoline.
Look for the TOP TIER label on
the fuel pump to ensure gasoline
meets enhanced detergency
standards developed by the auto
companies. A list of marketers
providing TOP TIER Detergent
Gasoline can be found at
www.toptiergas.com.
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.
Gasolines containing oxygenates,
such as ethers and ethanol,
and reformulated gasolines
might be available in your area.
We recommend that you use these
gasolines, if they comply with the
specifications described earlier.
However, E85 (85% ethanol) and
other fuels containing more than
15% ethanol must not be used in
vehicles that were not designed
for those fuels.
I n f o r ma t i o n P r o v i d e d b y :
Notice: This vehicle was not
designed for fuel that contains
methanol. Do not use fuel
containing methanol. It can
corrode metal parts in the fuel
system and also damage plastic
and rubber parts. That damage
would not be covered under the
vehicle warranty.
Some gasolines that are
not reformulated for low
emissions can contain an
octane-enhancing additive called
methylcyclopentadienyl manganese
tricarbonyl (MMT); ask the attendant
where you buy gasoline whether the
fuel contains MMT. We recommend
against the use of such gasolines.
Fuels containing MMT can reduce
spark plug life and affect emission
control system performance.
The malfunction indicator lamp
might turn on. If this occurs,
return to your dealer for service.