Chevrolet STFF6S Automobile User Manual


 
You should
ask
your service station operators
if
their gasolines contain
deposit control additives and oxygenates, and
if
they have been
reformulated
to
reduce vehicle emissions.
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.
Fuel
Requirements
NOTICE:
Diesel fuel or fuel additives not recommended in this manual
could damage your fuel system and engine. Your warranty
wouldn’t cover this damage. And:
Diesel fuel that has been mixed with engine
oil
could damage
your engine and emission controls.
Always
check with your
service station operator to make sure his diesel fuel has not
been mixed with engine oil.
If
you ever run out
of
diesel fuel, it can be difficult to restart
your engine. “Running Out
of
Fuel,” later in
this
section, tells
you how to get it started again.
To
avoid all this, try never to
let your tank get empty.
What
Fuel
to
Use
For
best results, use Number
2-D
diesel
fuel
year-round (above and below
freezing conditions) as
oil
companies blend Number 2-D fuel to address
climate differences. Number 1-D diesel fuel may be used
in
very cold
temperatures (when it stays below
0°F
or
-1
8°C);
however,
it
will
produce
a power and fuel economy
loss.
The use of Number 1-D diesel fuel
in
warm
or hot climates may result in stalling, poor starting when the engine
is
hot
and may damage the fuel injection system.
Diesel fuel may foam when you fill your tank. This can cause the automatic
pump nozzle
to
shut
off,
even though your tank isn’t
full.
If
this
happens,
just wait for the foaming
to
stop and then continue
to
fill
your tank.
6-4