Volvo 240 1991 Owner's Manual page 105

Volvo 1991 240 Model
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.
Octane Rating
Volvo engines are designed for optimum performance on unleaded premium gasoline with an octane
rating, 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 alcohol without advertising the presence of alcohol. If you
are not sure whether there is alcohol 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 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 tank filler cap is located behind the door on the right rear fender. Open cap slowly during hot
weather conditions.
When filling, position the cap in the special bracket on the door.
After filling the tank, install the cap and turn until a "click" is heard.
The fuel tank is designed to hold approximately 15.8 US gal. (60 liters), with sufficient volume left over
to accommodate possible of the fuel in hot weather.
Be aware that the "usable" tank capacity will be somewhat less than the 15.8-US gal. (60 liter)
maximum. When the fuel level is low, such factors as ambient temperature, the fuel's "vapor pressure"
characteristics, and terrain can affect the fuel pumps' ability to supply the engine with an adequate
supply of fuel. Therefore, it is advisable to refuel as soon as possible when the needle nears the red zone.
file:///K|/ownersdocs/1991/1991_240/91240_13.htm (3 of 4)12/30/2006 8:57:15 AM