Chevrolet/GMC Duramax Diesel Supplement (GMNA-Localizing-U.S./Canada-
11354421) - 2018 - CRC - 5/9/17
46
Driving and Operating
Some conditions, such as dirty fuel,
may decrease fuel filter life and a
CHANGE FUEL FILTER message
may come on in the Driver
Information Center (DIC).
What Fuel to Use in
the U.S.
Use of diesel fuel with ultra low
sulfur content (15 ppm, maximum) is
required. Look for service station
fuel dispensers with this label in
green:
Use diesel fuel that meets ASTM
specification D975, 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
also meeting ASTM International
D975 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.
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.
What Fuel to Use in
Canada
Use of diesel fuel with ultra low
sulfur content (15 ppm maximum) is
required. Use diesel fuel that meets
CAN/CGSB-3.517 specification in
Canada. Contact a fuel supplier for
questions about fuel.
