ESSENTIALS OF GOOD FUEL ECONOMY
Measuring techniques
Your best source of information about actual fuel economy is you, the
driver. You must gather information as accurately and consistently as
possible. Fuel expense, frequency of fill-ups or fuel gauge readings are
NOT accurate as a measure of fuel economy. We do not recommend
taking fuel economy measurements during the first 1,000 miles
(1,600 km) of driving (engine break-in period). You will get a more
accurate measurement after 2,000 miles–3,000 miles
(3,000 km–5,000 km).
Filling the tank
The advertised fuel capacity of the fuel tank on your vehicle is equal to
the rated refill capacity of the fuel tank as listed in theMaintenance
product specifications and capacitiessection of this chapter.
The advertised capacity is the amount of the indicated capacity and the
empty reserve combined. Indicated capacity is the difference in the
amount of fuel in a full tank and a tank when the fuel gauge indicates
empty. Empty reserve is the small amount of fuel remaining in the fuel
tank after the fuel gauge indicates empty.
The amount of usable fuel in the empty reserve varies and should
not be relied upon to increase driving range. When refueling your
vehicle after the fuel gauge indicates empty, you might not be
able to refuel the full amount of the advertised capacity of the
fuel tank due to the empty reserve still present in the tank.
For consistent results when filling the fuel tank:
•Turn the engine/ignition switch to the off position prior to refueling,
an error in the reading will result if the engine is left running.
•Use the same filling rate setting (low — medium — high) each time
the tank is filled.
•Allow no more than two automatic click-offs when filling.
•Always use fuel with the recommended octane rating.
•Use a known quality gasoline, preferably a national brand.
•Use the same side of the same pump and have the vehicle facing the
same direction each time you fill up.
•Have the vehicle loading and distribution the same every time.
Your results will be most accurate if your filling method is consistent.
Maintenance and Specifications
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Event data recording ....................8
Exhaust fumes ..........................195
F
Fail safe cooling ........................281
Flexible Fuel Vehicle (FFV) ....283
Fluid capacities .........................306
Four-Wheel Drive vehicles
preparing to drive your
vehicle .....................................205
Fuel ............................................283
calculating fuel
economy ............................24, 290
cap ...........................................286
capacity ...................................306
choosing the right fuel ...........288
comparisons with EPA fuel
economy estimates .................292
detergent in fuel .....................288
filling your vehicle with
fuel ...........................283, 286, 290
filter, specifications ........283, 305
fuel pump shut-off switch .....226
improving fuel economy ........290
octane rating ...................288, 310
quality ......................................289
running out of fuel .................289
safety information relating to
automotive fuels .....................283
Fuel - flex fuel vehicle
(FFV) .................................283, 288
Fuses ..........................................228
G
Gas cap (see Fuel cap) ............286
Gas mileage (see Fuel
economy) ...................................290
Gauges .........................................19H
Hazard flashers .........................225
Head restraints ...........................85
Headlamps ...................................50
aiming ........................................53
bulb specifications ....................56
daytime running lights .............50
flash to pass ..............................51
high beam .................................50
replacing bulbs .........................57
turning on and off ....................50
Heating
heater only system .............47, 49
heating and air conditioning
system .......................................48
Hood ..........................................268
I
Ignition ...............................192, 310
Illuminated visor mirror .............63
Infant seats
(see Safety seats) .....................117
Inspection/maintenance (I/M)
testing ........................................295
Instrument panel
cleaning ...................................264
cluster ........................................14
lighting up panel and
interior .......................................51
J
Jack ............................................236
positioning ...............................236
storage .....................................236
Jump-starting your vehicle ......245
Index
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