Diesel Fuel Requirements And Fuel System; Diesel Engine Fuel - GMC 2003 DURAMAX Owner's Manual

Diesel Fuel Requirements and
Fuel System
Some states and provinces have restrictions on the
purchase of diesel fuel for light-duty vehicles and require
you to buy permits or pay special taxes. Some of
these restrictions apply only to residents, and others
apply to both residents and visitors. These restrictions
can change. To learn the current restrictions in any
state or province, contact your auto club, the police or
other officials.
5-2

Diesel Engine Fuel

Notice: Diesel fuel or fuel additives not
recommended in this manual could damage your
fuel system and engine. Your warranty would
not cover this damage. And:
•
Diesel fuel that has been mixed with engine oil
or automatic transmission fluid could damage
your engine and emission controls.
•
Aftermarket diesel fuel additives are not tested
by General Motors. Some additives, particularly
those which contain alcohol or water
emulsifiers, may damage your fuel system. If
you believe that unique circumstances call for a
fuel additive to be used, consult your dealer
for advice.
•
If you ever run out of diesel fuel, it can be
difficult to restart your engine. To avoid all this,
never let your tank get empty.
If you run out of fuel, Running Out of Fuel on page 5-10,
tells you how to restart your engine.