Volvo XC90 owner manual Fuel requirements, Octane rating

06 Starting and driving

Fuel requirements

Octane rating

Minimum octane

G028920

Typical pump octane label

Volvo recommends premium for best perform- ance, but using 87 octane1 or above will not affect engine reliability.

Volvo engines are designed to achieve rated horsepower, torque, and fuel economy per- formance using premium 91 octane fuel.

Demanding driving

In demanding driving conditions, such as oper- ating the vehicle in hot weather, towing a trailer, or driving for extended periods at higher alti- tudes than normal, it may be advisable to switch to higher octane fuel (91 or higher) or to

change gasoline brands to fully utilize your engine's capacity, and for the smoothest pos- sible operation.

NOTE

When switching to higher octane fuel or changing gasoline brands, it may be neces- sary to fill the tank more than once before a difference in engine operation is noticeable.

Fuel Formulations

Do not use gasoline that contains lead as a knock inhibitor, and do not use lead additives. Besides damaging the exhaust emission con- trol systems on your vehicle, lead has been strongly linked to certain forms of cancer.

Many fuels contain benzene as a solvent. Unburned benzene has been strongly linked to certain forms of cancer. If you live in an area where you must fill your own gas tank, take precautions. These may include:

•standing upwind away from the filler nozzle while refueling

•refueling only at gas stations with vapor recovery systems that fully seal the mouth of the filler neck during refueling

•wearing neoprene gloves while handling a fuel filler nozzle.

Use of Additives

With the exception of gas line antifreeze during winter months, do not add solvents, thicken- ers, or other store-bought additives to your vehicle's fuel, cooling, or lubricating systems. Overuse may damage your engine, and some of these additives contain organically volatile chemicals. Do not needlessly expose yourself to these chemicals.

WARNING

Carbon monoxide is a poisonous, colorless, and odorless gas. It is present in all exhaust gases. If you ever smell exhaust fumes inside the vehicle, make sure the passenger compartment is ventilated, and immediately return the vehicle to a trained and qualified Volvo service technician for correction.

06

1AKI (ANTI KNOCK INDEX) is an average of the Research Octane Number (RON) and the Motor Octane Number (MON), MON+RON/2.

￿￿

135