[xj-s] My 'new' xjs v12 HE Lead replacement or unleaded? Now LPG

LPG has a lower calorific energy value compared to petrol, the benefit
is not power - but COST.
Petrol is currently around 77ppl, compared with LPG at 37ppl.

I wonder how the calorific energy of Hydrogen compares with Petrol - and
what its octane rating would be?

A small number of Hydrogen powered buses are running in Hackney - East
London I believe. I bet people obey the ‘No Smoking’ signs on those!

I believe that the UK spec V12 has a compression ratio of 12.5:1 - odd
as it is listed as ‘standard’ compression in the user handbook.

I’m getting something like 2mpg difference (with the air con running)
when using LPG compared to Petrol.

At the moment the UK government is ‘committed to cleaner fuels’ - which
is why LPG is cheaper. I have absolutely no doubt whatsoever that once
enough motorists are using LPG then the taxation aspect will change -
and the ‘committed to cleaner fuels’ line will be quietly dropped.

Taxation on LPG is frozen until 2004 - it will be interesting to see
what happens thereafter.

Taxation on fuel in the UK has NEVER had anything to do with the
environment.

George
1989 Jaguar XJR-S V12 5.3 UK Spec, with LPG
www.btinternet.com

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George said:
…I bet people obey the ‘No Smoking’ signs on those! …

Hi George,
Actually, one of the advantages of hydrogen is that when it is realeased it
rises very quickly. If it is on fire, the rapid gain in altitude helps
reduce injuries. That is why none of the deaths, or serious injuries, in
the Graf Zepplin fire in New Jersey in the late 30’s was from burns.

Hydrogen is pretty neat stuff. I’m looking forward to its’ increase use and
availability.

Dave
Atlanta
84 XJ-S HE

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I think you meant to say the “Hindenburg”.

Hi George,
Actually, one of the advantages of hydrogen is that when it is realeased
it
rises very quickly. If it is on fire, the rapid gain in altitude helps
reduce injuries. That is why none of the deaths, or serious injuries, in
the Graf Zepplin fire in New Jersey in the late 30’s was from burns.

Hydrogen is pretty neat stuff. I’m looking forward to its’ increase use
and
availability.

Dave

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Gary said:
I think you meant to say the “Hindenburg”. …

And I think your must be right!

Dave
Atlanta
84 XJ-S HE

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I’m getting something like 2mpg difference (with the air con running)
when using LPG compared to Petrol.

Better?

At the moment the UK government is ‘committed to cleaner fuels’ - which
is why LPG is cheaper. I have absolutely no doubt whatsoever that once
enough motorists are using LPG then the taxation aspect will change -
and the ‘committed to cleaner fuels’ line will be quietly dropped.

Taxation on LPG is frozen until 2004 - it will be interesting to see
what happens thereafter.

Taxation on fuel in the UK has NEVER had anything to do with the
environment.

George

Is BP behing LPG at all? Is BP still known as British Petroleum? Here in the
States, they call it Beyond Petroleum when the hooked up with AMOCO. I may
have missed the two companies joining forces. I like going to BP now that it
is easier to find a station. Clean, good pr regarding their concerns for the
environment, but who knows? How is BP perceived in the UK?

Charles

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In reply to a message from Gary sent Sun 14 Sep 2003:

The Graf Zeppelin (not (’‘Zepplin’’) was actually ship LZ-127
which did not meet a catastrophic end.

You are thinking of the Hindenburg LZ-129 which burned and
crashed at Lakehurst, New Jersey May 6th 1937.

I would like to know your source for the statement: ‘‘That is
why none of the deaths, or serious injuries, in the Graf
Zepplin fire in New Jersey in the late 30’s was from burns.’’
I have never heard this before.

Dennis–
The original message included these comments:

reduce injuries. That is why none of the deaths, or serious injuries, in
the Graf Zepplin fire in New Jersey in the late 30’s was from burns.


1988 XJS V12 GM400 Lucas CEI
Minnesota, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–

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Dennis said:
…I would like to know your source for the statement: ‘‘That is why none of
the deaths, or serious injuries, in the Graf
Zepplin fire in New Jersey in the late 30’s was from burns.’’ I have never
heard this before. …

Hi Dennis,
I apologize for the inaccuracies, in the statement. Of course it was the
Hindenberg. Also, as I’m sure “few” should replace “none”. However, the
gist of what I was saying was correct. It is highly likely that, of the
burns that did occur, the large majority were from fuels other than hydrogen
(diesel fuel, furniture and appointments, etc.).

IIRC, the original source was an article on hydrogen fuel, possibly in Road
& Track, a few years ago. However, the link below is one of numerous
results from a quick Yahoo search.

Dave
Atlanta
84 XJ-S HE

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Oops… here is the link:

http://www.clean-air.org/hindenberg.htm

Dave
Atlanta
84 XJ-S HE

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I’m getting something like 2mpg difference (with the air con running)
when using LPG compared to Petrol.

Better?

I’m not the original poster, but it will be 2mpg WORSE than petrol. LPG has
less energy in it, so you use up more of it.

Is BP behing LPG at all? Is BP still known as British Petroleum? Here in
the States, they call it Beyond Petroleum when the hooked up with AMOCO. I
may have missed the two companies joining forces. I like going to BP now
that it is easier to find a station. Clean, good pr regarding their
concerns for the environment, but who knows? How is BP perceived in the UK?

Maybe this will answer your question:
http://homepage.ntlworld.com/jj2000/

Unfortunately, most of the other, proper sites for the campaign seem to have
disappeared… :frowning:

Gordan

// please trim quoted text to context onlyOn Sunday 14 September 2003 14:16, Charles Maraia wrote:

It is highly likely that, of the

burns that did occur, the large majority were from fuels other than
hydrogen
(diesel fuel, furniture and appointments, etc.).

Of course, it has been learned that the hydrogen was not the source nor the
cause, but rather the “skin” which was extremely flammable. Even so, could
you imagine the uproar if they tried to build another one? A classic case
of throwing the baby out with the bathwater…
Dale
92 XJS V12 Coupe

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In reply to a message from David Grunden/Alice McCarthy sent Sun 14 Sep 2003:

Dave:

No apology necessary!!

Many thanks for the link. Interesting.

Dennis–
The original message included these comments:

…I would like to know your source for the statement: ''That is why none of


1988 XJS V12 GM400 Lucas CEI
Minnesota, United States
–Posted using Jag-lovers JagFORUM [forums.jag-lovers.org]–

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