User Manual - Page 223

For 2008 IMPREZA 2.5I PREMIUM.

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& Shifting speeds
! Recommended shifting speeds
The best compromise between fuel econ-
omy and vehicle performance during
normal driving is ensured by shifting up
at the speeds listed in the following table.
Non-turbo models
Shift up mph (km/h)
1st to 2nd 16 (26)
2nd to 3rd 27 (43)
3rd to 4th 38 (61)
4th to 5th 50 (81)
Turbo models
Shift up mph (km/h)
1st to 2nd 14 (23)
2nd to 3rd 24 (39)
3rd to 4th 35 (57)
4th to 5th 47 (76)
! Maximum allowable speeds
The following tables show the maximum
speeds that are possible with each differ-
ent gear.
Never exceed the speed limit listed in the
following table for each gear position
except for brief acceleration in an emer-
gency. The tachometers needle will enter
the red area if these speeds are ex-
ceeded. Failure to observe this precaution
can lead to excessive engine wear and
poor fuel economy.
Non-turbo models
mph (km/h)
1st 31 (50)
2nd 52 (84)
3rd 75 (120)
Turbo models
mph (km/h)
1st 34 (54)
2nd 59 (95)
3rd 85 (136)
Never exceed the posted speed limit.
WARNING
When shifting down a gear, ensure
that the vehicle is not travelling at a
speed exceeding the Maximum Al-
lowable Speed for the gear which is
about to be selected. Failure to
observe this precaution can lead to
engine over-revving and this in turn
can result in engine damage.
In addition, sudden application of
engine brakes when the vehicle is
travelling on a slippery surface can
lead to wheel locking; as a conse-
quence, control of the vehicle may
be lost and the risk of an accident
increased.
& Driving tips
Do not drive with your foot resting on the
clutch pedal and do not use the clutch to
hold your vehicle at a standstill on an
upgrade. Either of those actions may
cause clutch damage.
Do not drive with your hand resting on the
shift lever. This may cause wear on the
transmission components.
When it is necessary to reduce vehicle
speed due to slow traffic, turning corners,
or driving up steep hills, downshift to a
lower gear before the engine starts to
labor.
On steep downgrades, downshift the
transmission to 4th, 3rd or 2nd gear as
necessary; this helps to maintain a safe
speed and to extend brake pad life.
In this way, the engine provides a braking
effect. Remember, if you ride (over use)
the brakes while descending a hill, they
may overheat and not work properly.
The engine may, on rare occasions, knock
when the vehicle rapidly accelerates or
rapidly pulls away from a standstill. This
Starting and operating 7-15
CONTINUED
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