1999 NISSAN FRONTIER fuel

Accelerator downshift
In D position
For rapid passing or hill climbing, while
driving fully depress the accelerator pedal to
the floor. This shifts the transmission down
into second gear or first gear, depending on
the vehicle speed.
OVERDRIVE SWITCH
(KA24DE engine)
ON: For typical driving, push the overdrive
switch ON
with the selector lever
in the D (Drive) position. The trans-
mission is upshifted into OVERDRIVE
as the vehicle speed increases.
OVERDRIVE does not engage until the
engine has reached operating tempera-
ture.
OFF: For driving up and down long slopes
where engine braking is necessary,
push the switch OFF
. The indica-tor light in the instrument panel comes
on at this time. When cruising at a low
speed or climbing a gentle slope, you
may feel uncomfortable shift shocks
as the transmission repeatedly shifts
between 3rd and overdrive. In this
case, set the overdrive switch in the
OFF
position.
When driving conditions change, reset the
overdrive switch in the ON
position to
turn the overdrive on. The indicator light
goes out at this time.
Remember not to drive at high speeds for
extended periods of time with the overdrive
switch set in the OFF
position. This
reduces fuel economy.
ASD1009
Starting and driving5-11
ZX

OVERDRIVE SWITCH ( VG33E
engine)
ON: With the engine running and the se-
lector lever in the D (Drive) position,
the transmission upshifts into OVER-
DRIVE as vehicle speed increases.
OVERDRIVE does not engage until the
engine has reached operating tempera-
ture.
OFF: For driving up and down long slopes
where engine braking is necessary
push the OVERDRIVE switch once.
The O/D OFF indicator light in theinstrument panel comes on at this
time.
When cruising at a low speed or
climbing a gentle slope, you may feel
uncomfortable shift shocks as the
transmission shifts between third gear
and overdrive repeatedly. In this case,
depress the OVERDRIVE switch to
turn the OVERDRIVE off. The O/D
OFF indicator light in the instrument
panel comes on at this time.
When driving conditions change, depress
the overdrive switch to turn the OVER-
DRIVE on.
Remember not to drive at high speeds for
extended periods of time with the OVER-
DRIVE off. This reduces fuel economy.
WARNING
IDo not downshift abruptly on slip-
pery roads. This may cause a loss of
control.
IDo not over-rev the engine when
shifting to a lower gear. This may
cause a loss of control or engine
damage.
CAUTION
IDo not rest your foot on the clutch
pedal while driving. This may cause
clutch damage.
IStop your vehicle completely before
shifting into R (Reverse).
IWhen the vehicle is stopped for a
duration, for example at a stop light,
shift to N (Neutral) and release the
clutch pedal with the foot brake ap-
plied.
ASD1007
DRIVING WITH MANUAL
TRANSMISSION
5-12Starting and driving
ZX

Shifting with manual transmission
To change gears, fully depress the clutch
pedal, then move the gearshift lever. After
shifting, slowly release the clutch.
You cannot shift directly from 5th gear into R
(Reverse). First shift into the N (Neutral)
position, then into R (Reverse).
If it is difficult to move the shift lever into R
(Reverse) or 1st, shift into N (Neutral), then
release the clutch pedal. Depress the clutch
pedal and shift into R (Reverse) or 1st
again.
If your vehicle is equipped with 4-wheeldrive, see ``
Transfer case shifting pro-
cedures for four-wheel drive vehicles'' later
in this section.
Suggested up-shift speeds
The folllowing table provides suggested speed
ranges for shifting into a higher gear. These
suggestions relate to fuel economy and vehicle
performance. Actual shift ranges should be
adjusted for specific road conditions, weather
conditions and individual driving habits.
ITwo-wheel drive models and four-wheel
drive models (2H and 4H position):
Shift from MPH (km/h)
1st to 2nd 15 (24)
2nd to 3rd 25 (40)
3rd to 4th 40 (64)
4th to 5th 45 (72)
I4-wheel drive model (4L posi-
tion):
Shift from MPH (km/h)
1st to 2nd 8 (13)
2nd to 3rd 12 (19)
3rd to 4th 20 (32)
4th to 5th 22 (35)
Suggested maximum speed in each
gear
Downshift to a lower gear if the engine is not
running smoothly, or if you need to accelerate.
Do not exceed the maximum suggested speed
(shown below) in any gear. For level road
driving, use the highest gear suggested for that
speed. Always observe posted speed limits,
and drive according to the road conditions,
which will ensure safe operation.
Allowable maximum speed in each gear:
2-wheel drive models MPH (km/h)
1st 30 (48)
2nd 55 (88)
3rd 80 (129)
4th & 5th þ (þ)
4-wheel drive models MPH (km/h)
2H/4H position
1st 25 (40)
2nd 43 (69)
3rd 68 (109)
4th & 5th þ (þ)
4L position
1st 12 (19)
2nd 22 (35)
3rd 30 (48)
4th & 5th þ (þ)
SD1017M
Starting and driving5-13
ZX

During the first 1,000 miles (1,609 km),
follow these recommendations for the future
reliability and economy of your new vehicle.
Failure to follow these recommendations
may result in vehicle damage or shortened
engine life.
IDo not run the engine over 4,000 rpm.
IDo not drive over the following speed
limits:
two-wheel drive models:
55 MPH (88 km/h)
four-wheel drive models
(2H or 4H position):
55 MPH (88 km/h)
four-wheel drive models
(4L position):
30 MPH (48 km/h)
IDo not accelerate at full throttle in any
gear.
IAvoid quick starts.
IAvoid hard braking as much as possible.
IDo not tow a trailer for the first 500 miles
(805 km).IAccelerate slowly and smoothly. Maintain
cruising speeds with a constant accelera-
tor position.
IDrive at moderate speeds on the high-
way. Driving at high speeds lowers fuel
economy.
IAvoid unnecessary stopping and brak-
ing. Maintain a safe distance behind
other vehicles.
IUse a proper gear range which suits road
conditions. On level roads, shift into high
gear as soon as possible.
IAvoid unnecessary engine idling.IKeep your engine tuned up.
IFollow the recommended periodic main-
tenance schedule.
IKeep the tires inflated to the correct
pressure. Low tire pressure increases
tire wear and wastes fuel.
IKeep the front wheels in correct align-
ment. Improper alignment increases tire
wear and lowers fuel economy.
IAir conditioner operation lowers fuel
economy. Use the air conditioner only
when necessary.
IWhen cruising at highway speeds, it is
more economical to use the air condi-
tioner and leave the windows closed to
reduce drag.
I
Use 4H or 4L position only when neces-
sary. Four-wheel drive operation lowers
fuel economy.
SD0001
BREAK-IN SCHEDULE INCREASING FUEL
ECONOMY
5-18Starting and driving
ZX

TO SHIFT
TRANSFER CASE:SHIFT PROCEDURE FOR AUTO-LOCK FREE-RUNNING HUBS
From 2H to 4HMove the transfer lever to 4H at speeds below 25 MPH (40 km/h). It is not necessary to depress the clutch pedal. Perform
this operation when driving straight.
From 4H to 2HMove the transfer lever to 2H. This can be done at any speed, and it is not necessary to depress the clutch pedal. Perform
this operation when driving straight.
NOTE:
AUTO-LOCK hubs will not disengage until the vehicle is moved about 3 feet (1 m) in the opposite direction of
travel:
IWhen driving forward, stop and move the vehicle 3 feet (1 m) in reverse.
IWhen backing up, stop and move 3 feet (1 m) forward, then move the vehicle about 3 feet (1 m) in reverse.
Disengaging the AUTO LOCK hubs will allow for better fuel economy, quieter ride and less component wear.
From 4H to 4L or 4L
to 4H1. Stop the vehicle.
2. Depress the clutch pedal, or place the selector lever in the P (Park) position.
3. Depress the transfer lever and move it to the 4L or 4H position. Change gears quickly and smoothly.
From 2H to 4L1. Stop the vehicle.
2. Depress the clutch pedal, or place the selector lever in the P (Park) position.
3. Depress the transfer lever and move it to 4L. Change gears quickly and smoothly.
From 4L to 2H1. Stop the vehicle.
2. Depress the clutch pedal, or place the selector lever in the P (Park) position.
3. Depress the transfer lever and move it to 2H. Change gears quickly and smoothly.
NOTE:
Follow the NOTE shown in shifting from 4H to 2H.
Starting and driving5-21
ZX

TO SHIFT TRANSFER
CASE:SHIFT PROCEDURE FOR MANUAL-LOCK FREE-RUNNING HUBS
From 2H to 4H1. Stop the vehicle.
2. Set both free-running hubs in the LOCK position.
3. Move the transfer lever to 4H. It is not necessary to depress the clutch pedal.
From 4H to 2HMove the transfer lever to 2H. This can be done at any speed, and it is not necessary to depress the clutch pedal. Perform
this operation when driving straight.
NOTE:
For two-wheel drive operation, set the free-running hubs in the FREE position. Disengaging the MANUAL LOCK
hubs will allow for better fuel economy, quieter ride and less component wear.
From 4H to 4L or 4L to
4H1. Stop the vehicle.
2. Depress the clutch pedal, or place the selector lever in the P (Park) position.
3. Depress the transfer lever and move it to the desired 4L or 4H position. Change gears quickly and smoothly.
From 2H to 4L1. Stop the vehicle.
2. Set free-running hubs in the LOCK position.
3. Depress the clutch pedal, or place the selector lever in the P (Park) position.
4. Depress the transfer lever and move it to 4L. Change gears quickly and smoothly.
From 4L to 2H1. Stop the vehicle.
2. Depress the clutch pedal, or place the selector lever in the P (Park) position.
3. Depress the transfer lever and move it to 2H. Chnage gears quickly and smoothly.
NOTE:
Follow the NOTE shown in shifting from 4H to 2H.
Starting and driving5-23
ZX

Temperature
A temperature increase accelerates the rate
of corrosion to those parts which are not
well ventilated.
Air pollution
Industrial pollution, the presence of salt in
the air in coastal areas, or heavy road salt
use will accelerate the corrosion process.
Road salt will also accelerate the disintegra-
tion of paint surfaces.
To protect your vehicle from corro-
sion:
Iwash and wax your vehicle often to keep
the vehicle clean.
Ialways check for minor damage to the
paint and repair it as soon as possible.
Ikeep drain holes at the bottom of the
doors and tailgate open to avoid water
accumulation.
Icheck the underbody and inside the
pick-up box. If any sand, dirt or salt is
accumulated, wash it off with water as
soon as possible.
CAUTION
INEVER remove dirt, sand or other
debris from the passenger compart-
ment by washing with a hose. Re-
move dirt with a vacuum cleaner or
broom.
INever allow water or other liquids to
come in contact with electronic com-
ponents inside the vehicle.
Chemicals used for road surface de-icing
are extremely corrosive. They accelerate
corrosion and deterioration of underbody
components such as the exhaust system,
fuel and brake lines, brake cables, floor pan
and fenders.
In winter, the underbody must be
cleaned periodically.
For additional protection against rust and
corrosion, which may be required in some
areas, consult an authorized NISSAN
dealer.
Appearance and care
7-5
ZX

When performing any inspection or mainte-
nance work on your vehicle, always take
care to prevent serious accidental injury to
yourself or damage to the vehicle. The
following are general precautions which
should be closely observed.
WARNING
IPark the vehicle on a level surface,
apply the parking brake securely and
block the wheels to prevent the ve-
hicle from moving. For a manual
transmission, move the shift lever to
N (Neutral). For an automatic trans-
mission, move the shift lever to P
(Park).
IBe sure the ignition key is OFF when
performing any parts replacement or
repairs.
IIf you must work with the engine
running, keep your hands, clothing,
hair and tools away from moving
fans, belts, and any other moving
parts.
IIt is advisable to remove ties and any
jewelry, such as rings, watches, etc.,
before working on your vehicle.IAlways wear eye protection when-
ever you work on your vehicle.
IIf you must run the engine in an
enclosed space such as a garage, be
sure there is proper ventilation for
exhaust gases.
INever get under the vehicle while it
is supported only by a jack. If it is
necessary to work under the vehicle,
support it with safety stands.
IKeep smoking materials, flame and
sparks away from fuel and battery.
IOn gasoline engine models with the
Multiport Fuel Injection (MFI) sys-
tem, the fuel filter or fuel lines
should be serviced by an authorized
NISSAN dealer because the fuel
lines are under high pressure even
when the engine is off.
CAUTION
IDo not work under the hood while
the engine is hot. Turn the engine off
and wait until it cools down.INever connect or disconnect either
the battery or any transistorized
component connector while the igni-
tion is on.
IAvoid contact with used motor oil.
Improperly disposed motor oil
and/or other vehicle fluids can hurt
the environment. Always conform to
local regulations for disposal of ve-
hicle fluid.
This ``Do-it-yourself'' section gives instruc-
tions regarding only those items which are
relatively easy for an owner to perform.
You should be aware that incomplete or
improper servicing may result in operating
difficulties or excessive emissions, and
could affect your warranty coverage.If in
doubt about any servicing, have it done
by an authorized NISSAN dealer.
MAINTENANCE
PRECAUTIONS
8-2Do-it-yourself
ZX