What Fuel To Use In; The U.s - GMC duramax diesel 2016 Supplement Manual

48 Driving and Operating

What Fuel to Use in

The U.S.

Use only diesel fuel with ultra low
sulfur content (15 ppm, maximum).
Look for dispensers with this label.
Use diesel fuel that meets ASTM
specification D 975, Grades No. 2-D
or No. 1-D S15, also known as Ultra
Low Sulfur Diesel. Contact a fuel
suppler for any questions.
Caution
Use of diesel fuel other than Ultra
Low Sulfur Diesel (15 ppm sulfur
maximum) will cause damage to
the exhaust after-treatment
system. This damage would not
be covered by the vehicle
warranty. Do not use marine,
locomotive, or boiler distillate fuel
since it may contain higher sulfur
levels.
Diesel Fuel Grades
For best results use No. 2-D diesel
fuel year-round because it is
blended for seasonal temperature
differences, both above and below
freezing conditions. No. 1-D diesel
fuel can be used in very cold
temperatures (below -18 °C or 0 °F);
however, it will reduce power and
fuel economy. Avoid using No. 1-D
diesel fuel in warm or hot climates.
It can result in stalling, poor starting
when the engine is hot, and damage
to the fuel injection system. The
fuels industry usually will
automatically modify the fuel for the
appropriate seasonal blend. If in
doubt, please confirm with your
local fuel supplier.
Premium Diesel Fuel
Premium Diesel Fuel (FQP-1A)
corresponding to the Engine
Manufacturers Association (EMA)
Recommended Guideline may
provide less noise, better starting,
and better vehicle performance, but
is not required.
Biodiesel
Biodiesel is a renewable fuel
produced from vegetable oils or
animal fats that have been
chemically modified for normal
performance.
Caution
Do not use home-made biodiesel
or home test kits because the
quality cannot be verified by
approved scientific methods. Do
not use raw vegetable oil or other
unmodified bio-oils, fats,
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