fuel consumption TOYOTA CELICA 2005 T230 / 7.G Owners Manual

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Recommended shifting speeds
For the best compromise between fuel
economy and vehicle performance, you
should upshift or downshift at approxi-
mately the following speeds:gear km/h (mph)
1 to 2 or 2 to 1 24 (15)
2 to 3 or 3 to 2 40 (25)
3 to 4 or 4 to 3 65 (40)
Downshift to the appropriate gear if accel-
eration is needed when you are cruising
below the above downshifting speeds.
Upshifting too soon or downshifting too
late will cause lugging, and possibly ping-
ing. Regularly revving the engine to maxi-
mum speed in each gear will cause ex-
cessive engine wear and high fuel
consumption.
NOTICE
Be careful not to overrev the engine.
Watch the tachometer to keep engine
rpm from going into the red zone.
The approximate maximum allowable
speed for each position is given be-
low for your reference: “2” 125 km/h (77 mph) . . . . . . . . . . . .
“1” 70 km/h (43 mph) . . . . . . . . . . . . .
If the M mode indicator light flashes...
Put the selector lever in the “D” position
and drive for a short time.
If the M mode indicator light stops flash-
ing but remains on after the selector lever
is returned to the “M” position, you can
drive in M mode.
If the M mode indicator light still flashes,
there is a problem somewhere in the sys-
tem. Put the selector lever in the “D”
position. Consult with your Toyota dealer
as soon as possible.
The M mode indicator light flashes under
the following conditions:
The temperature of the automatic trans-
mission oil is low. The transmission
works exactly in the same way as
when you put the selector lever in the
“D” position.
The temperature of the automatic trans-
mission oil is high. You can still oper-
ate the transmission shift switches.
There is a problem somewhere in the
system. (e) Using engine braking
To use engine braking, you can downshift
the transmission as follows:
When you are driving in the “D” posi-
tion, push the overdrive switch. The
“O/D OFF” indicator light will come on
and the transmission will downshift to
third gear, and engine braking will be
obtained. When you are driving in
fourth gear (“M” position), push the
transmission downshift switch to select
the “3” position. The transmission will
downshift to third gear and engine
braking will be obtained.
Shift the selector lever into the “2”
position or push the transmission shift
switch to the “2” position in M mode.
The transmission will downshift to sec-
ond gear when the vehicle speed drops
down to or lower than 112 km/h (69
mph), and stronger engine braking will
be enabled.
Shift the selector lever into the “L”
position or push the transmission shift
switch to the “1” position in M mode.
The transmission will downshift to first
gear when the vehicle speed drops
down to or lower than 52 km/h (32
mph), and maximum engine braking will
be enabled.

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∗1: Under cold engine conditions. ∗2:For constant −speed cruise or
constant −speed cruise after decelera-
tion.
High altitude —Higher than 1219 m (4000 ft.)
Upshifting gear km/h (mph)
1 to 2 24 (15)
2 to 3 40 (25)
3 to 4 64 (40)
4 to 5 72 (45)
Downshifting gear km/h (mph)
2 to 1 24 (15)
3 to 2 40 (25)
4 to 3 64 (40)
5 to 4 72 (45)
6 −speed
gear km/h (mph)
1 to 2 or 2 to 1 24 (15)
2 to 3 or 3 to 2 40 (25)
3 to 4 or 4 to 3 64 (40)
4 to 5 or 5 to 4 72 (45)
5 to 6 or 6 to 5 80 (50) Downshift to the appropriate gear if accel-
eration is needed when you are cruising
below the above downshifting speeds.
Upshifting too soon or downshifting too
late will cause lugging, and possibly ping-
ing. Regularly revving the engine to maxi-
mum speed in each gear will cause ex-
cessive engine wear and high fuel
consumption.
Maximum allowable speeds
To get on a highway or to pass slower
traffic, maximum acceleration may be nec-
essary. Make sure you observe the follow-
ing maximum allowable speeds in each
gear:
5
−speed
gear km/h (mph)1 56 (35)
2 92 (57)
3 126 (78)
4 171 (106)
6 −speed
gear km/h (mph)1 60 (37)
2 93 (58)
3 128 (80)
4 163 (101)
5 208 (129)NOTICE
Do not downshift if you are going
faster than the maximum allowable
speed for the next lower gear.
Good driving practice
If it is difficult to shift into reverse, put
the transmission in neutral, release the
clutch pedal momentarily, and then try
again.
When towing a trailer, in order to main-
tain engine braking efficiency, do not
use fifth (5 −speed models) or sixth
gear (6 −speed models).
CAUTION
Be careful when downshifting on a
slippery surface. Abrupt shifting
could cause the vehicle to skid or
spin.
NOTICE
Make sure the vehicle is completely
stopped before shifting into reverse.

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INFORMATION BEFORE DRIVING YOUR
TOYOTA
Information before driving your Toyota
Break−in period 148
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Fuel 148
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Fuel pump shut off system 150
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Operation in foreign countries 150
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Three −way catalytic converter 150
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Engine exhaust cautions 151
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Facts about engine oil consumption 152
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Iridium −tipped spark plugs 153
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Brake system 153
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Brake pad wear limit indicators 156
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Your Toyota’s identification 157
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Theft prevention labels 158
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Suspension and chassis 158
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Tire information 159
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Vehicle load limits 169
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Cargo and luggage 169
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Types of tires 172
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SECTION 2

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Keep the back door closed while
driving. An open or unsealed back
door may cause exhaust gases to
be drawn into the vehicle.
To allow proper operation of your
vehicle’s ventilation system, keep
the inlet grilles in front of the wind-
shield clear of snow, leaves, or oth-
er obstructions.
If you smell exhaust fumes in the
vehicle, drive with the windows
open and the back door closed.
Have the cause immediately located
and corrected.
FUNCTIONS OF ENGINE OIL
Engine oil has the primary functions of
lubricating and cooling the inside of the
engine, and plays a major role in main-
taining the engine in proper working order.
ENGINE OIL CONSUMPTION
It is normal that an engine should con-
sume some engine oil during normal
engine operation. The causes of oil
consumption in a normal engine are as
follows.
Oil is used to lubricate pistons, piston
rings and cylinders. A thin film of oil
is left on the cylinder wall when a pis-
ton moves downwards in the cylinder.
High negative pressure generated when
the vehicle is decelerating sucks some
of this oil into the combustion chamber.
This oil as well as some part of the oil
film left on the cylinder wall is burned
by the high temperature combustion
gases during the combustion process.
Oil is also used to lubricate the stems
of the intake valves. Some of this oil
is sucked into the combustion chamber
together with the intake air and is
burned along with the fuel. High tem-
perature exhaust gases also burn the
oil used to lubricate the exhaust valve
stems.The amount of engine oil consumed de-
pends on the viscosity of the oil, the
quality of the oil and the conditions the
vehicle is driven under.
More oil is consumed by high
−speed driv-
ing and frequent acceleration and decel-
eration.
A new engine consumes more oil, since
its pistons, piston rings and cylinder walls
have not become conditioned.
Oil consumption: Max. 1.0 L per 1000
km (1.1 qt./600 miles, 0.9 Imp. qt./600
miles)
When judging the amount of oil con-
sumption, note that the oil may become
diluted and make it difficult to judge
the true level accurately.
As an example, if a vehicle is used for
repeated short trips, and consumes a nor-
mal amount of oil, the dipstick may not
show any drop in the oil level at all, even
after 1000 km (600 miles) or more. This
is because the oil is gradually becoming
diluted with fuel or moisture, making it
appear that the oil level has not changed.
The diluting ingredients evaporate out
when the vehicle is then driven at high
speeds, as on an expressway, making it
appear that oil is excessively consumed
after driving at high speeds.
Facts about engine oil
consumption

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NOTICE
Dinghy towing does not eliminate the
possibility of damage to your vehicle.
DINGHY TOWING TIPS
Before dinghy towing, be sure to ob-
serve the following in order to reduce
the damage to your vehicle.1. Put the shift lever in neutral.
2. Turn the ignition switch to the “ACC” position. Make sure the audio is turned
off and any item is not plugged into
the power outlet.
NOTICE
To avoid the locking of the steering
wheel, turn the ignition switch to the
“ACC” position.
3. Release the parking brake.
After dinghy towing, let the engine idle for
more than 3 minutes before driving the
vehicle.
NOTICE
Do not tow your vehicle from the
rear. This may cause serious damage
to your vehicle.
Your vehicle is designed primarily as a
passenger −carrying vehicle. Towing a
trailer will have an adverse effect on
handling, performance, braking, durability
and driving economy (fuel consumption,
etc.). Your safety and satisfaction depend
on the proper use of correct equipment
and cautious driving habits. For your
safety and the safety of others, you must
not overload your vehicle or trailer. Toyota
warranties do not apply to damage or
malfunction caused by towing a trailer for
commercial purposes. Ask your local
Toyota dealer for further details before
towing.
WEIGHT LIMITS
Before towing, make sure the total trailer
weight, gross vehicle weight, gross axle
weight and trailer tongue load are all with-
in the limits.
The total trailer weight and tongue load
can be measured with platform scales
found at a highway weighing station, build-
ing supply company, trucking company,
junk yard, etc.
Trailer towing for vehicles
without rear aero bumper

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CAUTION
Do not exceed 72 km/h (45 mph) or
the posted towing speed limit,
whichever is lower. Because insta-
bility (swaying) of a towing vehicle
trailer combination usually in-
creases as the speed increases, ex-
ceeding 72 km/h (45 mph) may
cause loss of control.
Slow down and downshift before
descending steep or long downhill
grades. Do not make sudden down-
shifts.
Avoid holding the brake pedal down
too long or too frequently. This
could cause the brakes to overheat
and result in reduced braking effi-
ciency.
Toyota does not recommend towing a
trailer with your rear aero bumper
equipped CELICA. It is not designed for
trailer towing.Improving fuel economy is easy—just take
it easy. It will help make your vehicle last
longer, too. Here are some specific tips
on how to save money on both fuel and
repairs:
Keep your tires inflated at the cor-
rect pressure.
Underinflation causes
tire wear and wastes fuel. See Section
7 −2 for instructions.
Do not carry unneeded weight in
your vehicle. Excess weight puts a
heavier load on the engine, causing
greater fuel consumption.
Avoid lengthy warmup idling. Once
the engine is running smoothly, begin
driving—but gently. Remember, howev-
er, that on cold winter days this may
take a little longer.
Keep the automatic transmission
overdrive turned on when engine
braking is not required. Driving with
the overdrive off will reduce the fuel
economy. (For details, see “Automatic
transmission” in Section 1 −7.)
Accelerate slowly and smoothly.
Avoid jackrabbit starts. Get into high
gear as quickly as possible.
Trailer towing for vehicles
with rear aero bumper How to save fuel and make
your vehicle last longer

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Avoid long engine idling. If you have
a long wait and you are not in traffic,
it is better to turn off the engine and
start again later.
Avoid engine lugging or overrev-
ving. Use a gear position suitable for
the road on which you are travelling.
Avoid continuous speeding up and
slowing down. Stop−and− go driving
wastes fuel.
Avoid unnecessary stopping and
braking. Maintain a steady pace. Try
to time the traffic signals so you only
need to stop as little as possible or
take advantage of through streets to
avoid traffic lights. Keep a proper dis-
tance from other vehicles to avoid sud-
den braking. This will also reduce wear
on your brakes.
Avoid heavy traffic or traffic jams
whenever possible.
Do not rest your foot on the clutch
or brake pedal. This causes premature
wear, overheating and poor fuel econo-
my.
Maintain a moderate speed on high-
ways. The faster you drive, the greater
the fuel consumption. By reducing your
speed, you will cut down on fuel con-
sumption.
Keep the front wheels in proper
alignment. Avoid hitting the curb and
slow down on rough roads. Improper
alignment not only causes faster tire
wear but also puts an extra load on
the engine, which, in turn, wastes fuel.
Keep the bottom of your vehicle free
from mud, etc. This not only lessens
weight but also helps prevent corro-
sion.
Keep your vehicle tunedup and in
top shape. A dirty air cleaner, improp-
er valve clearance, dirty plugs, dirty oil
and grease, brakes not adjusted, etc.
all lower engine performance and con-
tribute to poor fuel economy. For longer
life of all parts and lower operating
costs, keep all maintenance work on
schedule, and if you often drive under
severe conditions, see that your vehicle
receives more frequent maintenance.
(For scheduled maintenance informa-
tion, please refer to the “Scheduled
Maintenance Guide” or “Owner ’s Manu-
al Supplement”.)
CAUTION
Never turn off the engine to coast
down hills. Your power steering and
brake booster will not function with-
out the engine running. Also, the
emission control system operates
properly only when the engine is run-
ning.