Very Cold Weather Operation - GMC 2003 C4C042 Owner's Manual

What Fuel to Use in Canada
Canadian fuels are blended for seasonal changes. Diesel
Type "A" fuel is blended for better cold weather starting
(below 0 _ F or 18 _ C); however, you may notice some
-
power and fuel economy loss. If Type "A" fuel is used
in warmer temperatures, stalling and hard starting may
occur. Diesel Type "B" fuel is blended for temperatures
above 0 _ F ( 18 _ C). The emission control system
-
requires the use of diesel fuel with low
weight) content. Both low
be available in Canada. Only low
available in the United States. It is important that
-
diesel powered trucks are refueled only with low
fuel. Use of fuels with higher
the function of the emission components and may
cause reduced performance, excessive smoke and
unpleasant odor.
At a minimum, the diesel fuel you use should meet
specifications CAN/CGSB
Diesel) in Canada. In addition, the Engine
Manufacturers Association (EMA) has identified
properties of an improved diesel fuel for better engine
performance and durability (FQP
corresponding to the EMA description could provide
better starting, less noise and better vehicle
performance. If there are questions about the fuel you
are using, contact your fuel supplier.
-
sulfur (.05% by
- -
and higher sulfur fuels will
-
sulfur diesel fuels are
-
sulfur
-
sulfur content will affect
- -
3.517 2000 (Low Sulfur
-
1A). Diesel fuels

Very Cold Weather Operation

Follow the instructions listed previously under the
heading "What Fuel to Use."
NOTICE:
Never use home heating oil or gasoline in your
diesel engine. They can cause engine damage.
In cold weather, your fuel filter may become clogged
(waxed). To unclog it, move the vehicle to a warm
garage area and warm the filter to between 32 _ F and
50 _ F (0 _ C to 10 _ C). You won't need to replace it.
Additional information on the fuel filter follows.
6-7