Volvo C70 BROCHURE 2 Operations Instructions Page 75

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1998 C70
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.
pg. 57 Fuel requirements, Refueling
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).
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 alcohol 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 restrictions, some states require the use of "oxygenated" fuel in certain
areas.
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.
Refueling
The fuel filler cap is located inside the fuel tank cover on the right rear fender.
NOTE: The fuel tank cover is locked and must be popped open using the control on the driver's door
(see page 37).
Open fuel filler cap slowly during hot weather conditions.
When filling, hang the cap on the special bracket on the inside of the fuel tank cover.
NOTE: Turn the ignition off or to position I when refueling. If the ignition is on, an incorrect reading
could occur in the fuel gauge (low fuel level will be indicated).
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