What Fuel To Use In Canada And Mexico - GMC 2010 T-Series Owner's Manual

What Fuel to Use in Canada
and Mexico
Notice: Use of diesel fuel other than Ultra Low
Sulfur Diesel (15 ppm sulfur maximum) will cause
permanent damage to the DPF and related
components. This damage would not be covered by
your warranty.
The emission control system requires the use of diesel
fuel with ultra low-sulfur (0.0015% by weight, or 15 ppm,
maximum) content. Ultra Low Sulfur Diesel fuel is
available in Canada. In Mexico, Ultra Low Sulfur Diesel
fuel is not available in all regions.
At a minimum, the diesel fuel you use should meet the
latest version of specification CAN/CGSB-3.517 (ULS)
in Canada. In addition, the Engine Manufacturers
Association (EMA) has identified properties of an
improved diesel fuel for better engine performance and
durability (FQP-1A). Diesel fuels 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.
Canadian fuels are blended for seasonal changes.
Diesel Type A fuel is blended for better cold weather
starting (below 18°C or 0°F); however, you might
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 18°C (0°F).
It is acceptable to use diesel fuel containing up to
5% biodiesel (B5), but the final blended fuel must meet
the same specification, CAN/CGSB-3.517 (ULS) in
Canada, as other fuels used in your vehicle, and the
biodiesel used for making this fuel must meet the latest
version of ASTM specification D 6751. Biodiesel is
produced from vegetable oils or animal fat that have
been chemically modified to reduce the possibility of
damage to the fuel system and engine. Higher
concentration (i.e., greater than B5) biodiesel-containing
fuels or the use of unmodified bio-oils blended into
diesel fuel at any concentration is not recommended
and could damage the fuel system and engine. Such
damage would not be covered by your warranty. If there
are questions about the biodiesel-containing fuels you
are using, contact your fuel supplier.
5-9