Saab 9-5 2011 Owner's Manual page 176

Ethanol contains less energy per liter
than gasoline, which is why fuel con‐
sumption increases when driving on
E85 compared with gasoline. A con‐
sequence of this is that a tank of E85
covers fewer kilometers than a tank of
gasoline.
Caution
Certain additives in petrol could, in
combination with ethanol, cause
reduced driveability. For this rea‐
son, refuel with a full tank of petrol
every 6,000 miles. Use up the ma‐
jority of this before refuelling the
car again.
Cars designed for E85 fuel may be
equipped with an engine coolant
heater. The reason for this is that the
E85 fuel has poorer starting charac‐
teristics than gasoline, especially in
northern countries.
The engine coolant heater compen‐
sates partly for this and makes it pos‐
sible to start when the temperature is
below 14 °F, even with the highest
ethanol mixture (E85).
■ If possible, use the engine coolant
heater since it compensates for the
poorer starting characteristics of
the E85 fuel.
■ If the engine coolant heater cannot
be used when the temperature is
below 14 °F then a greater propor‐
tion of gasoline should be used to
avoid the car being more difficult to
start.
■ When the temperature is between
14 °F and -22 °F, the engine coolant
heater should be engaged at least
1.5 h before start.
■ When the temperature is below
-22 °F, the engine coolant heater
must be engaged at least 4 h before
start.
■ Start the engine in the normal way
when the temperatures are high.
Engine coolant heater 3 151.
Driving and operating
Refuelling
9 Danger
Follow the operating and safety in‐
structions of the filling station
when refueling.
If you spill fuel and then something
ignites it, you could be badly
burned. Fuel can spray out on you
if you open the fuel cap too quickly.
This spray can happen if your tank
is nearly full, and is more likely in
hot weather. Open the fuel cap
slowly and wait for any "hiss" noise
to stop. Then unscrew the cap all
the way.
Gasoline fumes are highly explo‐
sive. Therefore:
• before refueling, switch off en‐
gine and any external heaters with
combustion chambers.
• never smoke while refueling.
• never use gasoline for any pur‐
pose other than as engine fuel.
175