#1 Diesel Fuel...When is the change over ??
#2
Registered User
Usually March 1st.
That is if your supplier ever used a #1/#2 blend in the first place.
Most no longer use a blend except in the far north but rather use straight #2 with additive because it's cheaper and easier.
That is if your supplier ever used a #1/#2 blend in the first place.
Most no longer use a blend except in the far north but rather use straight #2 with additive because it's cheaper and easier.
#4
Registered User
Thread Starter
Originally Posted by infidel
Most no longer use a blend except in the far north but rather use straight #2 with additive because it's cheaper and easier.
#5
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Thread Starter
Originally Posted by edwinsmith
Do you get worse mileage on #1? Edwin
Here's some info I found on the net explaining the differences in Diesel Fuel Grades.
Diesel fuels are classified 1D, 2D, and 4D. Low speed, stationary units use 4D fuels. 4D fuel is not appropriate for most mobile equipment. On-highway and mobile equipment use 1D and 2D fuels. High speed diesel engines use either 1D or 2D fuels. Important characteristics of diesel fuels are its viscosity, pour point, and cetane number. The primary differences between 1D and 2D fuel are the pour point and the viscosity. Pour point is the lowest temperature at which a liquid will flow. Viscosity is the resistance of a liquid to flow. A 1D fuel is designed for cold weather operation; thus, it is less viscous and has a lower pour point. A 2D fuel is used in warmer weather because it has a higher viscosity and pour point. The higher viscosity provides better lubrication qualities for the moving parts of the fuel injection system. Because 2D fuels contain more Btu's (British thermal units - the amount of heat necessary to raise one (1) pound of water one (1) degree fahrenheit) per gallon, they are able to deliver more power per gallon. This is critical to diesel engine fuel economy. The higher the Btu rating a diesel fuel has, the greater power yield per gallon; thus, higher mpg will result. Cetane rating is the diesel equivalent to gasoline's octane rating. Unlike an octane rating, which rates gasoline's resistance to spontaneous ignition, the cetane rating number (usually 40 to 55 for medium to high speed engines) notes the relative ease with which diesel fuel ignites. The higher the cetane number, the easier the fuel ignites; the higher the octane number, the more resistant the fuel is to ignition. Each manufacturer usually specifies a minimum or maximum cetane rating and the suggested operating temperature for 1D and 2D fuels. A given fuel may meet 1D or 2D specifications, but if the Btu rating is too low, then decreased fuel mpg will result
#6
Registered User
Originally Posted by Katmandu
Wouldn't that additive just be simple Kerosene ?
My feeling is that #1 diesel will become a thing of the past shortly as refiners strive to carry and produce fewer products. Part of the Energy Bill of 2005 reduced the number of different gasoline blends nationwide from from over 50 to just 6 at the oil industry's urging.
Also many of the new Phase III EPA emissions control engines won't like D1.
#7
Registered User
Thread Starter
Originally Posted by infidel
My friend who drives a a fuel tanker carrying several different "brands" (they all come from the same tank) says they add an industrial strength Power Service to his diesel loads. One gallon treats 10,000.
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