Oil and Duty/VAT :-))
Not quite that simple!
Kerosene and Paraffin are two different things, although often lumped together
Kerosene is close to what is used in jet engines and gas turbines, but as they
have separate lubrication systems for the engine parts that handle the fuel, the
fuel doesn't need oil to be added.
Diesel engines in general, especially those with rotary DPA pumps rely on the
added oil in the diesel to lubricate the pump bearings. Multi-fuel diesels
usually have in-line pumps with camboxes that are lubricated from the engine.
Bedford and Horstmann ( ne: Coventry Climax H30) both supplied engines with
in-line pumps to the MOD for this reason.
I think the derivation of the fuel is different as well, kero is a crude oil
product, paraffin is lower down the chain IIRC and may have additives from coal
tar products. Paraffin absorbs water, while kero does not, another reason why it
is not favoured as a fuel.
See also: TVO
Why do you ask?
Peter & Rita Forbes
On Thu, 27 Mar 2008 19:42:06 -0000, campingstoveman wrote:
Yep, diesel, gas oil etc is 35sec. kerosene parrafin is 28sec.
"sec" being the number of seconds a given quantity of the oil takes to
flow through a specified hole in a specified container.
Mr Forbes description of kero v parrafin is interesting, particulary the
hydroscopic nature of parrafin, that is something I've not heard before.
Is there a reference for that anywhere?
That would explain something that's puzzled me for a few years.
When I was VERY young, I painted my push bike. The paint was too thick
but I found parrafin thinned it OK. The resultant mixture took ages to
dry and the bike went rusty as it did so.
There's a good deal of free water in paraffin. I always use petrol to wash
down things (electric motor parts for instance) that I can't subsequently
wash in detergent and finally plain water.
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