Notice: Diesel fuel or fuel additives not recommended in this manual
could damage your fuel system, fuel-operated heater (FOH) (Van models only)
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 this, never let your tank get empty.
If you run out of fuel, Running Out of Fuel tells you how to restart your engine.