without causing the engine to lug. Always start a
loaded truck, equipped with a two-speed axle, in the
lower axle range.
3.6 ENGINE COMPRESSION.
vehicle, the engine compression will provide a degree of
b r a k i n g when the accelerator is released. Do not
disengage the clutch until the vehicle, as a result of
engine compression and brake application, has almost
come to a complete stop. Engine compression can also
be used as a brake with automatic transmissions.
However, never down shift an automatic transmission
when traveling in excess of 30 mph. Use the low gear
range during icy driving conditions to reduce the
Always turn off the
3.7 VEHICLE REFUELING.
ignition switch to stop the engine while refueling. Do
not strike matches, use lighters or smoke in the vicinity
of the vehicle during refueling.
3.8 OPERATING FOR FUEL EFFICIENCY. Studies
have shown that the average motor vehicle, operated in
the fuel efficient manner set forth below, can achieve
at least 20 percent more miles per gallon (mpg) than
one operated in a normal manner. Motor vehicle
operators should be instructed in the following fuel
efficient methods and learn how to determine when the
vehicle requires maintenance in order to achieve fuel
(1) Ensure vehicle is the minimum weight and size
Remove unnecessary loads, but
f o r the payload.
maximize payloads. Moving the total vehicle weight
a n d its load accounts for 80 percent of the fuel