E85 Or Flexfuel; Engine Oil Life System; Driving For Better Fuel; Economy - GMC Sierra Denali 2017 Owner's Manual

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26
In Brief
Premium Recommended Fuel
Use premium 93 octane unleaded
gasoline in your vehicle. Unleaded
gasoline with an octane rating as
low as 87 may be used, but it will
reduce performance and fuel
economy. See Fuel 0 300.

E85 or FlexFuel

FlexFuel Possible
Certain models are compatible with
E85 fuel. See Fuel 0 300.

Engine Oil Life System

The engine oil life system calculates
engine oil life based on vehicle use
and, on most vehicles, displays a
DIC message when it is necessary
to change the engine oil and filter.
The oil life system should be reset
to 100% only following an oil
change.
Resetting the Oil Life System
To reset the engine oil life system:
1. Display OIL LIFE REMAINING
on the DIC. See Driver
Information Center (DIC) 0 141.
If the vehicle does not have
DIC buttons, the vehicle must
be in P (Park) to access this
display.
2. Press and hold the
the DIC, or the trip odometer
reset stem if the vehicle does
not have DIC buttons, for
several seconds. The oil life
will change to 100%.
The oil life system can also be reset
as follows:
1. Turn the ignition to ON/RUN
with the engine off.
2. Fully press the accelerator
pedal slowly three times within
five seconds.
3. Display OIL LIFE REMAINING
on the DIC. If the display
shows 100%, the system is
reset.
See Engine Oil Life System 0 351.

Driving for Better Fuel

Economy

Driving habits can affect fuel
mileage. Here are some driving tips
to get the best fuel economy
possible.
Avoid fast starts and accelerate
smoothly.
Brake gradually and avoid
button on
abrupt stops.
Avoid idling the engine for long
periods of time.
When road and weather
conditions are appropriate, use
cruise control.
Always follow posted speed
limits or drive more slowly when
conditions require.
Keep vehicle tires properly
inflated.
Combine several trips into a
single trip.
Replace the vehicle's tires with
the same TPC Spec number
molded into the tire's sidewall
near the size.

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Sierra 2017

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