In extremely cold weather, some diesel engine operators will mix small
amounts of gasoline with the diesel fuel in order to make the fuel more
combustible in a diesel engine. In that case, it's the gasoline that is
helping the diesel burn, not a case of more easily ignited diesel
assisting the more reluctant gasoline to burn as a result of
compression.

thats done to keep the diesel from turning into jello at low
temperatures. the cars i had could take up to 30% gas for that in the
winter.

Matt

wrote:
In extremely cold weather, some diesel engine operators will mix small
amounts of gasoline with the diesel fuel in order to make the fuel more
combustible in a diesel engine. In that case, it's the gasoline that is
helping the diesel burn, not a case of more easily ignited diesel
assisting the more reluctant gasoline to burn as a result of
compression.

thats done to keep the diesel from turning into jello at low
temperatures. the cars i had could take up to 30% gas for that in the
winter.

Matt


Certainly; but consider that you were limited to that 30%. If you
exceeded 30%, you risked damaging the engine because the mixture would
be too volatile, (rather than not volatile enough), right?

wrote:
wrote:
In extremely cold weather, some diesel engine operators will mix small
amounts of gasoline with the diesel fuel in order to make the fuel more
combustible in a diesel engine. In that case, it's the gasoline that is
helping the diesel burn, not a case of more easily ignited diesel
assisting the more reluctant gasoline to burn as a result of
compression.

thats done to keep the diesel from turning into jello at low
temperatures. the cars i had could take up to 30% gas for that in the
winter.

Matt


Certainly; but consider that you were limited to that 30%. If you
exceeded 30%, you risked damaging the engine because the mixture would
be too volatile, (rather than not volatile enough), right?

if you go over 30% it would run too hot (so i was told) and it would
ingite too early like you say.

But the reason you add gas is NOT to make it burn better but to keep it
from freezing.

Matt

K. Smith wrote:
zee-qi wrote:
hi people.
i would ask you something.Who can explain me how does work diesel
engine.?and what kind of system it need to work normally.
..thx for your ansver...


They use diesel fuel which has a very low auto ignition temp (about
200-210C) so if a "vapour" of diesel sees 200C it auto ignites without a
spark.


PS. Isn't diesel fuel atomised, not vaporized, by the injectors?
(Could be the difference in terminology down under.)