If you put a lighted match into diesel it goes out. This is because the fuel is not very volatile - not enough evaporates to make a fuel air mixture that will burn. It is still usefull as a fuel because if it is heated it becomes much more volatile. So if you use a wick (where the fuel in the wick can be heated along with the wick) it will burn just fine.
In a diesel engine the fuel is heated by spraying it into very hot air. With a lower vapor pressure, and higher flash point > 60 oC... I'll grant that it is less flammable than gasoline. However, it is not accurate to say that diesel is not flammable.
The National Fire Protection Agency gives it a flammability rating of 2 (on a scale of 0 to 4). Any material safety data sheet (MSDS) that you look up for diesel will tell you that it is flammable.
Refer to the following URL for facts about diesel:
topic index | author index | special indexBibliographic EntryResult
ResultMaynard, Philip. 65742 Fire and Explosion Investigation [pdf]. UTS: Centre for Forensic Science. "2. What is the autoignition temperature of
a) Petrol 246°C
b) Diesel 210°C"
483 K Flash point. Wikipedia, 15, May 2005. "Diesel:
Flash point > 62°C
Autoignition temperature: 210°C
483 K Material Safety Data Sheet [pdf]. Syntroleum, 19 Oct 2004. "Flammable properties:
Flash point (PMCC): 100-125 F(37.8-51.5 C)
OSHA Flammability Class: Combustible Class II Liquid LEL (vol%): ~0.6 UEL (vol%): ~4.7
Autoignition temperature: ~257°C (~494°F)"
530 K Fire and Arson Accelerants. interFIRE.org. Excerpts from The Pocket Guide to Accelerant Evidence Collection Appendix II: Twenty Common Ignitable Liquids used as Fire Accelerants. 1999. "7. Fuel oil no.2 (home heating fuel, diesel fuel), Chemical formula is a carbon range of C9 - C23; flash point 126°F - 204°F (52-96°C); ignition temperature 494 F (257°C)"
530 K Diesel fuel and exhaust emissions. World Health Organization, 1996. [see table below]
No. 1: 450 K - 602 K No. 2: 527K - 558 K No. 3: 536 K
According to my manual, the fuel light goes on when the tank is down to approx 6 litres of diesel.
No, diesel fuel is not easy to set on fire. It has to have a good wick, or be vaporized to be quickly set on fire. You can put out a match in a pool of diesel fuel, but you wouldn't want to drop a match into a tank that holds it, as enough may have evaporated to cause it to ignite. It is not as volitile as gasoline.
you can take a small sample of fuel and light a match and put it to the fuel. coal fuel will ignite whereas jet fuel will extinguish the flam of the match.
Diesel burns when in an open container, it is not as volatile as gasoline. If you flick a match into diesel fuel, it will typically go out unless it is hot enough to vaporize due to the temperature. In a diesel engine, the fuel explodes when it gets to the right temperature, caused by pressure.
Diesel engines run on diesel fuel. Gasoline will destroy a diesel engine.
water sensor has malfunctioned/or fuel has large quantity of water contamination.
My Mk3 fiesta did not.
Where is the water drain for the Water in Fuel light?
Yes, diesel is a bio fuel
A 1998 Ram with the Cummins diesel has a water in fuel indicator on the dash that will illuminate if there is water in the fuel filter housing.
Diesel fuel mixes with gasoline.
Where is the diesel fuel filtered