Volvo V70 - Manual (Page 134)

2007 Volvo V70
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. 121 Starting and driving
Fuel requirements
Octane rating
Volvo engines are designed to achieve rated horsepower, torque, and fuel economy performance using
premium 91 octane fuel.
Volvo recommends premium for best performance, but using 87 octane or above will not affect engine
reliability.
In demanding driving conditions, such as operating the vehicle in hot weather, towing a trailer, or
driving for extended periods at higher altitudes 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 possible operation.
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