2017 CHEVROLET SILVERADO octane

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
30 In Brief
in the instrument cluster and theappropriate DIC messagedisplays. SeeRide ControlSystem Messages0154.
.Press and releasegagain to
turn on both systems.
StabiliTrak will automatically turn onif the vehicle exceeds 56 km/h(35 mph). Traction control willremain off.
SeeTr a c t i o n C o n t r o l / E l e c t r o n i cStability Control0295.
Tire Pressure Monitor
This vehicle may have a TirePressure Monitor System (TPMS).
The low tire pressure warning lightalerts to a significant loss inpressure of one of the vehicle's
tires. If the warning light comes on,stop as soon as possible and inflatethe tires to the recommendedpressure shown on the Tire andLoading Information label. SeeVehicle Load Limits0259.Thewarning light will remain on until thetire pressure is corrected.
The low tire pressure warning lightmay come on in cool weather whenthe vehicle is first started, and thenturn off as the vehicle is driven. Thismay be an early indicator that thetire pressures are getting low andthe tires need to be inflated to theproper pressure.
The TPMS does not replace normalmonthly tire maintenance. Maintainthe correct tire pressures.
SeeTire Pressure MonitorSystem0407.
Fuel (Except L86 6.2L
Engine)
Regular Fuel
Use only unleaded gasoline rated87 octane or higher in your vehicle.Do not use gasoline with an octanerating lower as it may result invehicle damage and lower fueleconomy. SeeFuel0311.
Fuel (L86 6.2L Engine)

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
In Brief 31
Premium Recommended Fuel
Use premium 93 octane unleadedgasoline in your vehicle. Unleadedgasoline with an octane rating aslow as 87 may be used, but it willreduce performance and fueleconomy. SeeFuel0311.
E85 or FlexFuel
FlexFuel Possible
Certain models are compatible withE85 fuel. SeeFuel0311.
Engine Oil Life System
The engine oil life system calculatesengine oil life based on vehicle useand, on most vehicles, displays aDIC message when it is necessaryto change the engine oil and filter.The oil life system should be resetto 100% only following an oilchange.
Resetting the Oil Life System
To r e s e t t h e e n g i n e o i l l i f e s y s t e m :
1. Display OIL LIFE REMAININGon the DIC. SeeDriverInformation Center (DIC) (BaseLevel)0145orDriverInformation Center (DIC)(Uplevel)0147.Ifthevehicledoes not have DIC buttons, thevehicle must be in P (Park) toaccess this display.
2. Press and hold theVbutton on
the DIC, or the trip odometerreset stem if the vehicle doesnot have DIC buttons, forseveral seconds. The oil lifewill change to 100%.
The oil life system can also be resetas follows:
1. Turn the ignition to ON/RUNwith the engine off.
2. Fully press the acceleratorpedal slowly three times withinfive seconds.
3. Display OIL LIFE REMAININGon the DIC. If the displayshows 100%, the system isreset.
SeeEngine Oil Life System0362.
Driving for Better Fuel
Economy
Driving habits can affect fuelmileage. Here are some driving tipsto get the best fuel economypossible.
.Avoid fast starts and acceleratesmoothly.
.Brake gradually and avoidabrupt stops.
.Avoid idling the engine for longperiods of time.
.When road and weatherconditions are appropriate, usecruise control.
.Always follow posted speedlimits or drive more slowly whenconditions require.
.Keep vehicle tires properlyinflated.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
Driving and Operating 311
Fuel
For diesel engine vehicles, see“Fuel for Diesel Engines”in theDuramax diesel supplement.
GM recommends the use of TOPTIER Detergent Gasoline to keepthe engine cleaner and reduceengine deposits. Seewww.toptiergas.com for a list of TOPTIER Detergent Gasoline marketersand applicable countries.
If the vehicle has a yellow sticker onthe fuel door, E85 or FlexFuel canbe used. SeeE85 orFlexFuel0312.
Except the 6.2L engine, use regularunleaded gasoline meeting ASTMspecification D4814 with a postedoctane rating of 87 or higher. Do notuse gasoline with a posted octanerating of less than 87, as this maycause engine knock and will lowerfuel economy.
For the 6.2L engine, premiumunleaded gasoline meeting ASTMspecification D4814 with a postedoctane rating of 93 is highlyrecommended for best performanceand fuel economy. Unleadedgasoline with an octane rated as lowas 87 can be used. Using unleadedgasoline rated below 93 octane,however, will lead to reducedacceleration and fuel economy.If knocking occurs, use a gasolinerated at 93 octane as soon aspossible, otherwise, the enginecould be damaged. If heavyknocking is heard when usinggasoline with a 93 octane rating, theengine needs service.
Prohibited Fuels
Caution
Do not use fuels with any of the
following conditions; doing so
may damage the vehicle and void
its warranty:
.For vehicles which are notFlexFuel, fuel labeledgreater than 15% ethanol byvolume, such as mid-levelethanol blends (16–50%ethanol), E85, or FlexFuel.
.Fuel with any amount ofmethanol, methylal, andaniline. These fuels cancorrode metal fuel systemparts or damage plastic andrubber parts.
.Fuel containing metals suchas methylcyclopentadienylmanganese tricarbonyl(MMT), which can damagethe emissions controlsystem and spark plugs.
(Continued)

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-9956065) - 2017 - CRC - 4/29/16
312 Driving and Operating
Caution (Continued)
.Fuel with a posted octanerating of less than therecommended fuel. Usingthis fuel will lower fueleconomy and performance,and may decrease the life ofthe emissions catalyst.
California Fuel
Requirements
If the vehicle is certified to meetCalifornia Emissions Standards, it isdesigned to operate on fuels thatmeet California specifications. Seethe underhood emission controllabel. If this fuel is not available instates adopting California EmissionsStandards, the vehicle will operatesatisfactorily on fuels meetingfederal specifications, but emissioncontrol system performance may beaffected. The malfunction indicatorlamp could turn on and the vehiclemay not pass a smog-check test.SeeMalfunction Indicator Lamp(Check Engine Light)0138.Ifthis
occurs, return to your authorizeddealer for diagnosis. If it isdetermined that the condition iscaused by the type of fuel used,repairs may not be covered by thevehicle warranty.
Fuels in Foreign
Countries
The U.S., Canada, and Mexico postfuel octane ratings in anti-knockindex (AKI). For fuel not to use in aforeign country, see“ProhibitedFuels”inFuel0311.
Fuel Additives
To k e e p f u e l s y s t e m s c l e a n , T O PTIER Detergent Gasoline isrecommended. SeeFuel0311.
If TOP TIER Detergent Gasoline isnot available, one bottle of GM FuelSystem Treatment Cleaner added tothe fuel tank at every engine oilchange, can help. GM Fuel SystemTreatment Cleaner is the onlygasoline additive recommended byGeneral Motors. It is available atyour dealer.
If your vehicle is able to use E85 orFlexFuel, GM Fuel SystemTreatment Cleaner - FlexFuel is theonly recommended additive for use.Do not use any other additives withan E85 or FlexFuel vehicle. SeeE85 or FlexFuel0312.
E85 or FlexFuel
Vehicles with a yellow sticker on thefuel door can use either unleadedgasoline or fuel containing up to85% ethanol (E85). All othervehicles should use only theunleaded gasoline as described inFuel0311.
The use of E85 or FlexFuel isencouraged when the vehicle isdesigned to use it. E85 or FlexFuelis made from renewable sources.
To h e l p l o c a t e f u e l s t a t i o n s t h a tcarry E85 or FlexFuel, the U.S.Department of Energy has analternative fuels website. Seewww.afdc.energy.gov/afdc/locator/stations.
E85 or FlexFuel should meetASTM Specification D 5798 orCAN/CGSB–3.512 in Canada. Do