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.
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).
After filling the tank, install the cap and turn until a "click" is heard.
The fuel tank is designed to hold approximately 18.4 US gal. (70 liters) with sufficient volume left over to
