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Black plate (24,1)
DURAMAX Diesel Engine (LML/LGH) - 2011
9-24
Driving and Operating
Biodiesel blends
It is acceptable to use diesel fuel
containing up to 20% biodiesel
(B20). For low level, under 5%,
biodiesel blends (B1 to B5),
the fuel you use should meet the
latest version of specification
CAN/CGSB
‐
3.520 (ULS). At the
time of printing of this manual, a
CGSB standard for B6
‐
B20 is under
development and has not been
published. Until a CGSB B6
‐
B20
specification is available, biodiesel
blends containing more than 5%
and up to 20% biodiesel must
meet the latest version of ASTM
specification D7467 (Biodiesel
blend, B6
‐
B20). To reduce the risk
of poor quality fuel, we recommend
that biodiesel users purchase
biodiesel blends from a BQ
‐
9000
certified marketer. A listing of
certified marketers can be
found at www.bq
‐
9000.org.
If there are questions about the
biodiesel
‐
containing fuels you are
using, contact your fuel supplier.
Notice:
Certain driving
patterns are not compatible
with biodiesel use. It is the
operator
’
s responsibility to
ensure that biodiesel in the
vehicle
’
s tank does not lead to
engine, fuel system, or exhaust
after
‐
treatment system damage.
We neither encourage nor
discourage the use of biodiesel
blends for vehicles. As a renewable
fuel, biodiesel provides some
environmental benefits. However,
biodiesel has unique properties and
needs to be handled differently
than diesel fuel. Its use presents
additional risks and may not be
appropriate in all situations. Certain
vehicle operating modes increase
these risks and should be avoided.
Read further to determine if your
driving habits are compatible with
the use of biodiesel.
.
Biodiesel fuel quality degrades
with time and exposure to high
temperature much more quickly
than conventional diesel fuel.
More frequent refueling provides
the best opportunity to have a
supply of fresh fuel.
Owners who have very low fuel
usage or who have vehicles
stored for extended periods of
time should avoid the use of
biodiesel. Storage at hot ambient
temperatures will accelerate
biodiesel degradation.
When vehicles will be stored
for extended periods of time
(greater than one month), they
should be run out of biodiesel to
below 1/4 tank, refueled with
conventional Ultra Low Sulfur
Diesel fuel, and driven several
miles before storage.