1998 Volvo S90
Volvo allows the use of the
following "oxygenated fuels";
however, the octane ratings
listed on this page must still be
met. of fuel. Therefore, it is
advisable to refuel as soon as
possible when the needle nears
the red zone, or when the fuel
warning light comes on.
Driving economy pg. 56
Economical driving
conserves natural
resources
Better driving economy may be
obtained by thinking ahead,
avoiding rapid starts and stops
and adjusting the speed of your
vehicle to immediate traffic
conditions. Observe the
following rules:
l Bring the engine to normal
operating temperature as soon
as possible by driving with a
light foot on the accelerator
pedal for the first few minutes
of operation. A cold engine
uses more fuel and is subject to
increased wear.
l Whenever possible, avoid
using the car for driving short
distances. This does not allow
the engine to reach normal
operating temperature.
l Drive carefully and avoid
rapid acceleration and hard
braking.
l Do not exceed speed limit.
l Avoid carrying unnecessary
items (extra load) in the car.
l Check tire pressure regularly
l Remove snow tires when
threat of snow or ice has ended.
l Note that roof racks, ski
racks, etc., increase air
resistance and thereby fuel
consumption.
l Avoid using automatic
transmission kick-down feature
unless necessary.
l Avoid using the air
conditioning when it is not
required. When engaged, the
air conditioner's compressor
places places an additional load
on the engine. However, please
note that fuel consumption is
lower with the air conditioning
on than it is when driving with
the air conditioning switched
off and the windows down.
Other factors which decrease
gas mileage are:
l Worn or dirty spark plugs
l Incorrect spark plug gap
l Dirty air cleaner
l Dirty engine oil and clogged
oil filter
l Dragging brakes
l Incorrect front end alignment
Some of the above mentioned
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1998 Volvo S90
timing belt be replaced every 70,000 (112,000 km).
Maintenance Schedule (cont.) pg. 107
Maintenance Operation thousand miles
(thousand km) 10
(16) 20
(32) 30
(48) 40
(64) 50
(80) 60
(96)
MISCELLANEOUS MAINTENANCE
ENGINE
Fuel (Line) Filter
PCV Nipple (Orifice)/hoses,clean I
Battery I I I I I I
BRAKES
Inspect Brakes, Replace components as
necessary I
I I I I I
Brake Fluid
STEERING
Rotate tires/check tire wear; (Align if needed.) I I I I I I
Check power steering fluid level. I I I I I I
BODY
Power antenna (clean) I I I I I I
Trunk, Hood Hinges and Latches L L L L L L
Sun roof L L L L L L
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1998 Volvo S90
Chapter 8 - (cont.)Engine oil
pg. 108
Checking the oil level
The oil level should be checked every
time the car is refuelled. This is
especially important during the engine
break-in period (up to the first service).
CAUTION: Not checking the oil level
regularly can result in serious engine
damage if the oil becomes too low.
Be sure the oil level is maintained between
the upper and lower marks on the dipstick.
Low oil level can cause internal damage to
the engine and over-filling can result in
high oil consumption. The distance
between the dipstick marks represents
approx. 1 US qt (1 liter) of oil. Before
checking the oil level after the car has been
driven, park the car on a level surface and
wait at least 5 minutes after the engine has
been switched off. The oil level should be
halfway between the MIN and MAX
marks.
If the oil is checked before the car is driven
(engine completely cold) the oil level
should be at the MAX mark.
NOTE: The engine must be stopped when
checking the oil.
Draining the oil
Drain the oil after driving while it is still
warm.
WARNING! The oil may be very
hot.
To add or change engine oil
Add oil of the same kind as already used.
Capacity (including filter): 5.9 US qts = 5.75 liters
Changing oil filter
Replace the oil filter at every oil change
WARNING! Oil spilled on a hot exhaust pipe
constitutes a fire risk.
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1998 Volvo S90
If you change the engine oil and filter
yourself, your Volvo retailer can assist you
in disposing of the used oil. Engine oil can
be harmful to your skin - gloves should
worn when performing this work.
Engine oil pg. 109
Oil quality
Meeting API specification SG, SG/CD, SH or
Energy Conserving (EC) II
For best fuel economy and engine protection
consult with your authorized Volvo retailer for
recommended oils. Oils with a different quality
rating may not provide adequate engine
protection.
Viscosity (stable ambient
temperatures):
Do not use oils with other viscosity ratings. The
use of incorrect viscosity oil can shorten engine
life.
Volvo recommends the use of energy-conserving
oils. Look for the API label. Synthetic oils
complying with oil quality requirements are
recommended for: driving in areas of sustained
temperature extremes (hot or cold), when towing
a trailer over long distances or for prolonged
driving in mountainous areas.
Extra oil additives must not be used unless
advised by an authorized Volvo retailer.
NOTE: SAE 15W/40 should only be used in
Changing oil and oil filter
Oil and oil filter changes should be made as
specified in the following table:
If driving conditions
include: Then the correct oil/oil
filter change interval
is:
l Extended periods of
idling and/or low-
speeds operation
l Frequent short trips
(less than 7 miles = 11
km)
l Extended periods of
driving in dusty and/or
sandy areas
l Trailer towing
l Driving in
mountainous areas EVERY 6 MONTHS
OR EVERY
5,000 miles= 8,000 km
WHICHEVER
COMES FIRST
l Primarily highway
driving
l Frequent trips of
longer than 7 miles =
11 km EVERY 12 MONTHS
OR EVERY
10,000 miles = 16,000
km
WHICHEVER
COMES FIRST
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1998 Volvo S90
extreme operating conditions such as trailer
towing in sustained ambient temperatures over
104° F (40° C). However, SAE 10W-30 synthetic
oil would be a better alternative in such
conditions.
SAE 15W-40 should not be used under normal
operating conditions.
American Petroleum Institute
(API) labels. These labels certify
the oil conforms to the applicable
standards and specifications of
the API.
Servicing pg. 110
Torque exhaust and
intake manifold nuts
A loose manifold could alter air/
fuel ratio and cause an increase
in emissions and/or poor
driveability.
Air cleaner
Replace the air cleaner cartridge
with a new one every 30,000
miles (48,000 km). The
cartridge should be replaced
more often when driving under
dirty and dusty conditions, The
filter cannot be cleaned and,
therefore, should always be
replaced with a new one.
Vacuum fittings, hoses
and connections
Unstable idle, misfiring, or poor
emission control is often caused
by leaking vacuum hoses or
connections. Check hoses and
connections on distributor
vacuum unit, connections on
heater control servo systems and
hydraulic brake servo.
Fuel system cap, tank
and lines, and
connections
The effectiveness of the fuel
system to contain hydrocarbons
is dependent largely on a
leakfree system. Check for
proper sealing of gasoline filler
cap which contains "O" ring-
type seals. Check all
evaporative hoses in vehicle for
tightness. Check fuel lines under
vehicle and repair if necessary.
Fuel (line) filter
The fuel line filter is located
next to the fuel pump. This filter
should be replaced every
100,000 miles (160,000 km).
The filter is replaced as one
complete unit.
Replace more frequently if
contaminated fuel is introduced
into the tank (or if there is
reason to suspect that this has
occurred).
Timing belt
WARNING!
The distributor ignition
system operates at very high
voltages. Special safety
precautions must be followed
to prevent injury.
Always turn the ignition off
when:
l Replacing distributor
ignition components e.g.
plugs, coil, etc.
l Do not touch any part of
the distributor ignition system
while the engine is running.
This may result in unintended
movements and body injury.
Replacing spark plugs
The spark plugs should be
changed every 30,000 miles
(48,000 km). However, city
driving or fast highway driving
may necessitate changing after
15,000 miles (24,000 km) of
driving. When installing new
plugs, be sure to fit the right type
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Idle air control system
Your Volvo is equipped with an
electronically-controlled idle air
control system that requires no
checking or adjustment.
Volvo recommends that the
timing belt be replaced every
70,000 miles (112,000 km).
PCV system
The orifice nipple in the intake
manifold and the filter at the
end of the PCV hose in the
aircleaner should be inspected
every 60,000 miles (96,000 km).
Check/replace rubber hoses at
the same time.
and use correct torque, see
Specifications. When changing
the plugs, check that the
suppressor connectors are in
good condition. Cracked or
damaged connectors should be
replaced.
When changing the spark plugs,
clean the terminals and the
rubber seals.
Battery maintenance pg. 111
Battery maintenance
Driving habits and conditions, climate, the
number of starts, etc. all affect the service life and
function of the battery. In order for your battery to
perform satisfactorily, keep the following in mind:
l Check the fluid level in the battery every 6
months or every 10,000 * miles (16,000 km).
The fluid level in each battery cell should be
checked - use a screw driver to open the caps and
a flashlight to inspect the level.
*More frequently in warm climates.
l If necessary, add distilled water to
approximately 0.4 in. (10 mm) above the plates in
the cell or to the level indicator. See the
illustrations above.
l Check that the battery cables are correctly
connected and properly tightened.
l Never disconnect the battery when the engine is
running, for example when changing the battery.
l The battery should be disconnected when a
boost charger is used.
l Switch off the radio before disconnecting the
battery. If your radio has an antitheft code and the
battery is disconnected, the radio code has to be
reentered in order for the radio to function.
Fuel/emissions systems pg. 112
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into the atmosphere. The system consists of a
system of hoses in the fuel tank, a "Roll-Over"
valve on the cross-member forward of the fuel
tank, a carbon filter canister in the engine
compartment which binds the fuel vapors, and an
electric valve which, when necessary, empties the
canister in the engine compartment of evaporated
fuel and routes it into the engine. Crankcase ventilation
The engine is provided with positive crankcase
ventilation which prevents crankcase gases from
being released into the atmosphere. Instead, the
crankcase gases are admitted to the intake
manifold and cylinders.
Contents | Top of Page
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1998 Volvo S90
Oil quality
Meeting API specification SG, SG/CD, SH or
Energy Conserving (EC) II
For best fuel economy and engine protection,
consult with your authorized Volvo retailer for
recommended oils. Oil with a different quality
rating may not provide adequate engine
protection.
Synthetic oils complying with oil quality
requirements are recommended for: driving in
areas of sustained temperature extremes (hot or
cold), when towing a trailer over long distances or
for prolonged driving in mountainous areas.
Extra oil additives must not be used unless
advised by an authorized Volvo retailer.
NOTE:SAE 15W/40 should only be used in
extreme operating conditions such as trailer
towing in sustained ambient temperatures over
104° F (40° C). However, SAE 10W-30 synthetic
oil would be a better alternative in such
conditions.
SAE 15W-40 should not be used under normal
operating conditions.
Capacity (including filter): 5.9 US qts = 5.75
liters
Automatic transmission
fluid Quality:ATF Dexron
IIE/III and Mercon
Capacity:7.9 US qts. (7.5 liters)
Rear axle oil Quality: API-GL-5
(MIL-L-2105 C or D)
SAE 80W-90Capacity:1.4 US qts (1.3 liters) sedans/
wagons
Power steering fluid Quality: ATF F,GCapacity:1.05 US qts. (1.0 liters)
Brake fluid Brake fluid type:DOT 4
+Capacity: 0.63 US qt. (0.6 liter)
All specifications are subject to change without notice.
Specifications pg. 123
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