1999 VOLVO S80 octane

important to check the oil every time you refuel your car during this period. See page 111.
Fuel requirements
Octane rating
Volvo engines are designed for optimum performance on unleaded premium gasoline with an octane rating. AKI of 91,
or above. AKI (ANTI KNOCK INDEX) is an average of the Research Octane Number, RON, and the Motor Octane
Number, MON. (RON + MON/2).
The minimum octane requirement is AKI 87 (RON 91).
Deposit control gasoline (detergent additives)
Volvo recommends the use of gasoline containing deposit control additives. These additives have shown to be efficient
in keeping injectors and intake valves clean. Consistent use of deposit control gasolines will help ensure good
driveability and fuel economy. If you are not sure whether the gasoline contains deposit control additives, check with
the service station operator.
Unleaded fuel
Each Volvo has a three-way catalytic converter and must use only unleaded gasoline. U.S. and Canadian regulations
require that pumps delivering unleaded gasoline be labelled "UNLEADED". Only these pumps have nozzles which fit
your car's filler inlet. It is unlawful to dispense leaded fuel into a vehicle labelled "unleaded gasoline only". Leaded
gasoline damages the three-way catalytic converter and the heated oxygen sensor system. Repeated use of leaded
gasoline will lessen the effectiveness of the emission control system and could result in loss of emission warranty
coverage. State and local vehicle inspection programs will make detection of misfueling easier, possibly resulting in
emission test failure for misfueled vehicles.
NOTE: Some U.S. and Canadian gasolines contain an octane enhancing additive called methyl-cyclopentadienyl
manganese tricarbonyl (MMT). If such fuels are used, your Emission Control System performance may be affected,
and the Malfunction Indicator Lamp located on your instrument panel may light. If this occurs, please return your
vehicle to an authorized Volvo retailer for service.
Gasoline containing alcohol and ethers
"Oxygenated fuels"
Some fuel suppliers sell gasoline containing "oxygenates" which are usually alcohols or ethers. In some areas, state or
local laws require that the service pump be marked indicating use of alcohols or ethers. However, there are areas in
which the pumps are unmarked. If you are not sure whether there is alcohol or ethers in the gasoline you buy, check
with the service station operator. To meet seasonal air quality standards, some areas require the use of "oxygenated"
fuel.
Volvo allows the use of the following "oxygenated fuels; however, the octane ratings listed on this page must still be
met.
Alcohol — Ethanol: Fuels containing up to 10% ethanol by volume may be used. Ethanol may also be referred to as
Ethyl alcohol, or "Gasohol".
Ethers — MTBE: Fuels containing up to 15% MTBE may be used.
pg. 63 Refueling
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Power steering fluid
ATF fluid.
Volume: 0.95 US qt (0.9 liter).
Brake fluid
DOT 4+
Volume: 0.64 US qt (0.6 liter)
Climate control system - refrigerant (R 134a)
Oil: PAG
Volume: 2.2 lbs (1000 g) R134a.
Fuel
Minimum octane requirement - AKI 87 (RON 91)
Volume (fuel tank): 21.1 US gals (80 liters)
Washer fluid reservoir
Volume: 4.7 US qts. (4.5 liters)
All specifications are subject to change without prior notice.
pg.122 Fuel system, Distributor ignition system, Suspension
Fuel system
The engine is equipped with a multiport fuel injection system.
Distributor ignition system
Firing order: 15-3-6-2-4
Distributor ignition setting: Not adjustable
Spark plugs: B 6284 T: P/N 271367-4 (or equivalent)
B 6304 S: P/N 272371-8 (or equivalent)
Spark plug gap: 0.028-0.032" (0.7-0.8 mm)
Tightening torque: 18.4 ft. lbs. (25 Nm)
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 and use correct torque. 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
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Jump starting75
K
Key - removing from ignition switch64
Keyless entry system56-57
Keyless entry system - replacing batteries57
Keylock64
Keys54
Kickdown66-67
L
Label information118
License plate lights - replacing96
Lifting the car108
Lights - accessory27
Locking and unlocking the car54
Locking steering wheel32
Long distance trip77
Long loads47, 52
M
Maintenance schedule103-104
Maintenance service102
Malfunction indicator lamp25
Memory function - front seats46
Mirrors36
Mirrors, sideview - folding27
O
Occupant safety11
Octane rating62
Odometer23
Oil - engine62, 76, 110-111, 121
Oil pressure warning light24
On-call124
Opening the hood109
P
Paint touch-up99
Panic function (alarm)58
Parking brake34
Parking brake reminder light24
Parking lights30
Passenger's seat backrest - folding47
Polishing101
Power seats46
Power steering - speed-sensitive70
Power steering fluid112, 121
Power windows35
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