2010 CADILLAC DTS fuel type

If this occurs, use a gasoline rated at 87 octane orhigher as soon as possible. Otherwise, you coulddamage the engine. If heavy knocking is heard whenusing gasoline rated at 87 octane or higher, the engineneeds service.
Gasoline Specifications
At a minimum, gasoline should meet ASTM specificationD 4814 in the United States or CAN/CGSB-3.5 or3.511 in Canada. Some gasolines contain anoctane-enhancing additive called methylcyclopentadienylmanganese tricarbonyl (MMT). We recommendagainst the use of gasolines containing MMT. SeeAdditives on page 6-6for additional information.
California Fuel
If the vehicle is certified to meet California EmissionsStandards, it is designed to operate on fuels thatmeet California specifications. See the underhoodemission control label. If this fuel is not availablein states adopting California emissions standards, thevehicle will operate satisfactorily on fuels meeting federalspecifications, but emission control system performancemight be affected. The malfunction indicator lampcould turn on and the vehicle might fail asmog-check test.
SeeMalfunction Indicator Lamp on page 4-57. If thisoccurs, return to your authorized dealer/retailer fordiagnosis. If it is determined that the condition is causedby the type of fuel used, repairs might not be coveredby the vehicle warranty.
Additives
To provide cleaner air, all gasolines in the United Statesare now required to contain additives that help preventengine and fuel system deposits from forming, allowingthe emission control system to work properly. In mostcases, nothing should have to be added to the fuel.However, some gasolines contain only the minimumamount of additive required to meet U.S. EnvironmentalProtection Agency regulations. To help keep fuel injectorsand intake valves clean, or if the vehicle experiencesproblems due to dirty injectors or valves, look for gasolinethat is advertised as TOP TIER Detergent Gasoline.
For customers who do not use TOP TIER DetergentGasoline regularly, one bottle of GM Fuel SystemTreatment PLUS, added to the fuel tank at everyengine oil change, can help clean deposits from fuelinjectors and intake valves. GM Fuel System TreatmentPLUS is the only gasoline additive recommended byGeneral Motors.
Also, your dealer/retailer has additives that will helpcorrect and prevent most deposit-related problems.
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To remove the fuel cap, turn it slowly counterclockwise.The fuel cap has a spring in it; if the cap is releasedtoo soon, it will spring back to the right.
While refueling, hang the tethered fuel cap from thehook on the fuel door.
{WARNING:
Fuel can spray out on you if you open the fuel cap
too quickly. If you spill fuel and then something
ignites it, you could be badly burned. This spray
can happen if the tank is nearly full, and is more
likely in hot weather. Open the fuel cap slowly and
wait for any hiss noise to stop. Then unscrew the
cap all the way.
Be careful not to spill fuel. Do not top off or overfill thetank and wait a few seconds after you have finishedpumping before removing the nozzle. Clean fuelfrom painted surfaces as soon as possible. SeeWashing Your Vehicle on page 6-95.
When replacing the fuel cap, turn it clockwise until itclicks. Make sure the cap is fully installed. Thediagnostic system can determine if the fuel cap has
been left off or improperly installed. This would allowfuel to evaporate into the atmosphere. SeeMalfunctionIndicator Lamp on page 4-57.
The TIGHTEN GAS CAP message displays on theDriver Information Center (DIC) if the fuel cap isnot properly installed. SeeDIC Warnings and Messageson page 4-67for more information.
{WARNING:
If a fire starts while you are refueling, do not
remove the nozzle. Shut off the flow of fuel by
shutting off the pump or by notifying the station
attendant. Leave the area immediately.
Notice:If you need a new fuel cap, be sure to getthe right type. Your dealer/retailer can get onefor you. If you get the wrong type, it may not fitproperly. This may cause the malfunction indicatorlamp to light and may damage the fuel tank andemissions system. SeeMalfunction Indicator Lampon page 4-57.
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Cadillac Owner Privileges™
•Emergency Fuel Delivery:Delivery of enough fuel
for the vehicle to get to the nearest service station.
•Lock-Out Service:Service is provided to unlock the
vehicle if you are locked out. A remote unlock maybe available if you have OnStar®. For securityreasons, the driver must present identificationbefore this service is given.
•Emergency Tow From a Public Road or
Highway:Tow to the nearest Cadillac dealer forwarranty service, or if the vehicle was in a crash andcannot be driven. Assistance is also given whenthe vehicle is stuck in the sand, mud, or snow.
•Flat Tire Change:Service is provided to change a
flat tire with spare tire. The spare tire, if equipped,must be in good condition and properly inflated.It is your responsibility for the repair or replacementof the tire if it is not covered by the warranty.
•Battery Jump Start:Service is provided to jump
start a dead battery.
•Trip Routing Service:Detailed maps of North
America are provided when requested eitherwith the most direct route or the most scenic route.Additional travel information is also available.Allow three weeks for delivery.
•Trip Interruption Benefits and Assistance:If your
trip is interrupted due to a warranty failure, incidentalexpenses may be reimbursed during the 5 year/100,000 miles (160 000 km) Powertrain warrantyperiod. Items considered are hotel, meals, andrental car.
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