Fuel Requirements; What Fuel To Use - GMC SIERRA 1995 Manual

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 conditionsj 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 -18°C); however, it will produce
a power and fuel economy loss. The use of Number I-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.
A
CAUTION:
Heat coming from the engine may cause the fuel to expand and
force the fuel out of your tank. If something ignites the fuel, a
fire
could start and people could be burned.
To help avoid this,
fill your fuel tank only until the automatic nozzle shuts off.
Don't try to "top it off."
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