The cetane rating of a specific diesel mixture is based off of how much cetane—a clear, colourless hydrocarbon that ignites under high pressures—is in some fuel. Pure cetane represents the highest purity of diesel fuel possible, and thus has a cetane rating of 100.
How is the ignition quality of diesel fuel rated?
Cetane number is a measure of the ignition quality of diesel engine fuels as it indicates the comparative ease with which a diesel fuel will ignite in a diesel engine cylinder. ... In a particular diesel engine, higher cetane fuels will have shorter ignition delay periods than lower cetane fuels.
What is the cetane rating of diesel fuel?
The scale for measuring cetane ranges from 0 to 100, and the higher the number, the better. Modern highway diesel engines tend to require fuel with a cetane number ranging from 45 to 55 . Typically, regular no. 2 diesel has a cetane number of 40 to 42, while Cenex® Premium Diesel has a cetane number of 47 to 52.
What’s the difference between #1 and #2 diesel?
Diesel #1 is also known as winter diesel because it performs better than Diesel #2 in cold temperatures . It has a lower viscosity and is not prone to gel in freezing temperatures. Most stations offer a premium Diesel mix that is blended for local weather conditions. Diesel #2 costs less at the pump.
What is the most common grade of diesel fuel?
#2 grade diesel fuel is the most readily available at most gas stations throughout the world. This chemical compound holds the highest amount of energy components and lubricant properties in one mixture and offers the best fuel performance available on the market today.
How do you increase cetane in diesel fuel?
Innospec can also provide a nitrogen-free Cetane Number Improver, CI-0808 . This additive can be used to increase the Cetane Number of diesel fuels without increasing the fuel nitrogen content. CI-0808 is a blend of Di-tert-butyl peroxide in solvent and is typically used at 0.05% to 0.50% volume.
What does the blue smoke in diesel engine indicate?
What does the blue smoke in diesel engine indicate? Explanation: Blue smoke comes out from the exhaust when there is unburnt oil in the diesel engine . A very thin layer of the oil gets deposited on the cylinder wall to provide the lubrication between the walls and the moving piston.
Should I put additive in my diesel?
While the nation’s supply of diesel fuel is generally dependable, it’s not always consistent. Diesel engine makers account for swings in quality when designing and certifying their engines. Generally, they do not endorse or recommend the use of fuel additives .
What is the cleanest diesel fuel?
Cleaner Diesel Fuels
Today, ultra-low sulfur diesel fuel – containing 97 percent less sulfur – is now the standard for both on-highway and off-highway diesel engines nationwide. Using this cleaner diesel (ULSD) immediately cuts soot emissions from diesel vehicles and equipment by 10 percent.
Is Costco diesel good quality?
From what I read, Costco Diesel is good quality . I contacted Costco and asked them if they had any future plans for diesel fuel at my location. They indicated there was no plans on adding diesel fuel pumps at my location.
Can you run straight #1 diesel?
Never ever run straight #1 diesel in your truck. It doesn’t have the lubricity of #2 and it will harm your fuel system.
Is it OK to mix diesel and kerosene?
Kerosene can be mixed with diesel fuel to gain a couple of benefits. ... The rule of thumb is that mixing in ten percent kerosene will lower the cold filter plugging point of a diesel fuel blend by five degrees.
How cold is #2 diesel good for?
2 diesel is approximately 14 degrees F. A good rule of thumb is to switch to a winter blend 15 degrees above cloud point. When overnight temperatures begin to dip down near 30 degrees F, it’s time to blend in No. 1 diesel with additives for winter.
What is #1 ULS diesel?
ULSD is a cleaner-burning diesel fuel that contains 97% less sulfur than low-sulfur diesel (LSD). ULSD was developed to allow the use of improved pollution control devices that reduce diesel emissions more effectively but can be damaged by sulfur.
What are the 3 types of diesel?
Diesel fuels are broken up into 3 different classes: 1D(#1), 2D(#2) and 4D(#4) . The difference between these classes depends on viscosity (the property of a fluid that causes a resistance to the fluid’s flow) and pour point (the temperature at which a fluid will flow). #4 fuels tend to be used in low-speed engines.
A premium diesel has a higher cetane number , better lubricity and includes detergents that provide injector-cleaning capability versus standard #2 diesel. ... Higher cetane equals a shorter delay and better ignition quality for quicker start-ups and less pollution.
