Silverado 2500 4WD V8-6.6L DSL Turbo VIN 2 (2004)
Fuel: Specifications
WHAT FUEL TO USE IN THE U.S.
In the United States, 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 -18°C); however, it
will produce a power and fuel economy loss. Avoid the use of Number 1-D diesel fuel in warm or hot climates. It may result in stalling, poor starting
when the engine is hot and may damage the fuel injection system.
At a minimum, the diesel fuel you use should meet specifications ASTM D975-02 (Grade Low Sulfur) in the United States. In addition, the Engine
Manufacturers Association (EMA) has identified properties of an improved diesel fuel for better engine performance and durability. Diesel fuels
corresponding to the EMA Recommended Guideline on Premium Diesel Fuel (FQP-1A) could provide better starting, less noise and better vehicle
performance. If there are questions about the fuel you are using, contact your fuel supplier.
It is acceptable to use diesel fuel containing up to 5% biodiesel (B5), but the final blended fuel must meet the same specification, ASTM D975-02
(Grade Low Sulfur), as other fuels used in your vehicle, and the biodiesel used for making this fuel must meet the ASTM D6751-02 specification.
Biodiesel is produced from vegetable oils or animal fat that have been chemically modified to reduce the possibility of damage to your fuel system and
engine. Higher concentration (i.e., greater than B5) biodiesel-containing fuels or the use of unmodified bio-oils blended into diesel fuel at any
concentration is not recommended and could damage your fuel system and engine. Such damage would not be covered by your warranty. If there are
questions about the biodiesel-containing fuels you are using, contact your fuel supplier.
Diesel fuel may foam when you fill your tank. This can cause the automatic pump nozzle to shut off, even though your tank is not full. If this happens,
just wait for the foaming to stop and then continue to fill your tank.
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. Do not try to "top
it off."
WHAT FUEL TO USE IN CANADA
Canadian fuels are blended for seasonal changes. Diesel Type "A" fuel is blended for better cold weather starting (below 0°F or -18°C); however, you
may notice some power and fuel economy loss. If Type "A" fuel is used in warmer temperatures, stalling and hard starting may occur. Diesel Type
"B" fuel is blended for temperatures above 0°F (-18°C). The emission control system requires the use of diesel fuel with low-sulfur (0.05% by weight)
content. Both low- and higher-sulfur fuels will be available in Canada. Only low-sulfur diesel fuels are available in the United States. It is important
that diesel-powered trucks are refueled only with low-sulfur fuel. Use of fuels with higher-sulfur content will affect the function of the emission
components and may cause reduced performance, excessive smoke and unpleasant odor.
At a minimum, the diesel fuel you use should meet specifications CAN/CGSB-3.517-2000 (Low Sulfur Diesel) in Canada. In addition, the Engine
Manufacturers Association (EMA) has identified properties of an improved diesel fuel for better engine performance and durability (FQP-1A). Diesel
fuels corresponding to the EMA description could provide better starting, less noise and better vehicle performance. If there are questions about the
fuel you are using, contact your fuel supplier.
It is acceptable to use diesel fuel containing up to 5% biodiesel (B5), but the final blended fuel must meet the same specification,
CAN/CGSB--3.517-2000 (Low Sulfur Diesel) in Canada, as other fuels used in your vehicle, and the biodiesel used for making this fuel must meet the
ASTM D6751-02 specification. Biodiesel is produced from vegetable oils or animal fat that have been chemically modified to reduce the possibility of
damage to your fuel system and engine. Higher concentration (i.e., greater than B5) biodiesel-containing fuels or the use of unmodified bio-oils
blended into diesel fuel at any concentration is not recommended and could damage your fuel system and engine. Such damage would not be covered
by your warranty. If there are questions about the biodiesel-containing fuels you are using, contact your fuel supplier.
WATER IN FUEL
CAUTION: Diesel fuel containing water is still flammable. You could be burned. If you ever try to drain water from your fuel, keep sparks,
flames and smoking materials away from the mixture.
NOTICE: If there is water in your diesel fuel and the weather is warm or humid, fungus and bacteria can grow in the fuel. They can damage your fuel
system. A diesel fuel biocide can be used to sterilize your fuel system. However, your fuel system may still need to be cleaned.
If your fuel tank needs to be purged to remove water. Improper purging can damage your fuel system.
Sometimes, water can be pumped into your fuel tank along with your diesel fuel. This can happen if a service station doesn't regularly inspect and
clean its fuel tanks, or if it gets contaminated fuel from its suppliers.
If this happens, a "WATER IN FUEL" message will appear on the Driver Information Center (DIC). If it does, the water must be drained.
