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Demise of Unleaded Petrol

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Geoffrey Sharples

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Apr 9, 1999, 3:00:00 AM4/9/99
to
I've recently acquired an E reg XJS which runs on leaded petrol which is
not meant to be available after Jan1 2000. It has been suggested that I
just switch to unleaded premium fuel or I can have the timing retarded
losing performance en route or I can have a conversion.

Please can anyone give advise on th ebest method to adopt.
Thanks in anticipation.
--
Geoff Sharples

mikedean

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Apr 12, 1999, 3:00:00 AM4/12/99
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The Morris Minor Owners Club have been evaluating a number of lead additives
using brand new blocks. the results are, all things considered, reasonably
good. You can read the test at www.mmocuk.com I wouldn't like to say whether
they would perform as well in a Jag though..... :)

Steve Wright

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Apr 12, 1999, 3:00:00 AM4/12/99
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Geoffrey Sharples <LPL...@geesharp.demon.co.uk> wrote in article
<2kNhZCAZ...@geesharp.demon.co.uk>...

I run a 'G' reg XJS V12 which runs on either 4* or unleaded - (it says this
on the fuel filler lid). Doesn't seem to make any significant difference
which fuel I use to either the performance or the economy. I don't believe
much changed between 1987/8 ? and 1990. Both are pre-catalytic convertor
models with fuel injection rather than carbs. I could be wrong though....
Regards,
Steve.

John Beard

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Apr 14, 1999, 3:00:00 AM4/14/99
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I've recently acquired an E reg XJS which runs on leaded petrol which is not
meant to be available after Jan1 2000. It has been suggested that I just
switch to unleaded premium fuel or I can have the timing retarded losing
performance en route or I can have a conversion.

Hi Nigel,
I have a 1988 XJS.
I rang Owens in Ipswich, they asked for my engine & body No.
Then said that I can run on super unleaded without any changes.
If you are still concerned do the same.
Regards John.

richard evans

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Apr 17, 1999, 3:00:00 AM4/17/99
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I have read several items on this topic. According to one theory valve seats
'remember' lead impregnation and any car that has done more than 60k.miles
will not need LRG or any additive for a long time provided it is not run at
high speed or excessive throttle. Another view is that we should go to
Germany and buy additives there, as they will have been tested harshly and
would not be on sale if they did not work. Then there is the view that
mixing racing fuel (if you can get it) 20% with unleaded will also work.
What I want to know is where the 0.5% of total volume leaded fuel grudgingly
offered after 2000 will be available.

Geoffrey Sharples wrote:

> I've recently acquired an E reg XJS which runs on leaded petrol which is
> not meant to be available after Jan1 2000. It has been suggested that I
> just switch to unleaded premium fuel or I can have the timing retarded
> losing performance en route or I can have a conversion.
>

mikedean

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Apr 17, 1999, 3:00:00 AM4/17/99
to
This 0.5% business is a myth. The logistics of getting this stuff from the
oil company to your doorstep is so expensive that nobody would buy it if
they COULD find it. Your local retailer will not want to go to the expense
of another tank just for the few sales of leaded fuel it would generate. You
of course would not be permitted to keep large volumes of the stuff in your
garage (it always amazes me that you can keep more fuel in your car than in
your garage) so you would have to invest in an underground tank. Then you
would have to buy a tankers worth at a time in order to have it delivered to
you. The only people likely to benefit from this miserable concession are
large owners clubs who have suitable premises and can afford the investment.
Even then, in order to cover their costs they will have to charge ludicrous
amounts per gallon. If your car can handle it, buy an unleaded conversion;
it'll work out cheaper in the long run. My own Morris Traveller had a £700
new engine fitted last summer, but now gets 42mpg (against 35 before) AND
on cheaper fuel. It has covered 9,000 miles since then and is happily still
paying for itself now. If on the other hand, your car CANT be converted, ask
your MP where the proven additive is that he promised faithfully would be
available BEFORE the government withdrew leaded fuel.

--
Jack Kevorkian for White House Physician.
richard evans wrote in message <37184009...@katsika.clara.co.uk>...

Dave

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Apr 18, 1999, 3:00:00 AM4/18/99
to
In article <37126...@news1.vip.uk.com>, "mikedean"

<mike...@breathemail.net> wrote:
>
> The Morris Minor Owners Club have been evaluating a number of lead
> additives
> using brand new blocks.

Goodness me. I wonder where they found new sidevalve blocks from?

--
Dave dave....@NOSPAMargonet.co.uk
(remove NOSPAM to reply)

Alan Eardley

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Apr 20, 1999, 3:00:00 AM4/20/99
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Well spotted. Must be Morris 1000 blocks...

Alan

In article <na.35a0d348f4.a...@NOSPAMargonet.co.uk>,
dave....@NOSPAMargonet.co.uk says...

Dave

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Apr 22, 1999, 3:00:00 AM4/22/99
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In article <7fi947$pc$1...@bs33n.staffs.ac.uk>, W.A.E...@soc.staffs.ac.uk

(Alan Eardley) wrote:
>
> Well spotted. Must be Morris 1000 blocks...
>
> Alan
>
> In article <na.35a0d348f4.a...@NOSPAMargonet.co.uk>,
> dave....@NOSPAMargonet.co.uk says...
> >
> >In article <37126...@news1.vip.uk.com>, "mikedean"
> ><mike...@breathemail.net> wrote:
> >>
> >> The Morris Minor Owners Club have been evaluating a number of lead
> >> additives
> >> using brand new blocks.
> >
> > Goodness me. I wonder where they found new sidevalve blocks from?

I /think/ they used Ital 1.3 engines, and changed the heads for new ones
after each test. IIRC.

Greg Walker

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Apr 23, 1999, 3:00:00 AM4/23/99
to
One of our clients has come up with what we believe to be a simple safe and
complete solution to the demise of leaded petrol. I can only suggest you
have a look at their site on http://www.magyk.com/powerplus.htm

Nigel Cliffe wrote in message ...
>In article <2kNhZCAZ...@geesharp.demon.co.uk>, Geoffrey Sharples


><LPL...@geesharp.demon.co.uk> wrote:
>
>> I've recently acquired an E reg XJS which runs on leaded petrol which is
>> not meant to be available after Jan1 2000. It has been suggested that I
>> just switch to unleaded premium fuel or I can have the timing retarded
>> losing performance en route or I can have a conversion.
>>
>> Please can anyone give advise on th ebest method to adopt.
>> Thanks in anticipation.
>
>

>Suggest you talk to at least two Jag specialists, but I thought that all
>Jags for the last 20+ years could run on unleaded without any major work.
>(If I'm correct, then anyone quoting for hardened valve seats is trying it
>on). They'd have needed hardened valve seats for the US market, which has
>been unleaded for ages.
>
>You may have to adjust the timing a little, or consider using
>super-unleaded instead of 4-star (I understand that the duty on
>super-unleaded is supposed to fall later this year to compensate for the
>loss of 4-star).
>
>The other option is unleaded plus a 'lead substitute & octane booster'. One
>such product (add a cupful to each gallon of petrol) passed some
>independent classic car tests recently, protecting against valve-seat wear
>and raising the octane level.
>
>
>- Nigel.
>
>--
>Nigel Cliffe, BT Labs, Martlesham.
> check the reply address for garbage

Pete Lucas

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Apr 23, 1999, 3:00:00 AM4/23/99
to
Greg Walker wrote:
> One of our clients has come up with what we believe to be a simple safe and
> complete solution to the demise of leaded petrol. I can only suggest you
> have a look at their site on http://www.magyk.com/powerplus.htm

Or look at a range of websites such as those from the Advertising
Standards Authority, or the Australian Triumph-owners' club, where
you'll find plenty of evidence that the "in line fuel catalysts"
don't work, and the promoters of such things can't produce evidence
of *how* they could work....

Try:-

http://www.asa.org.uk/adj/adj_2483.htm
http://www.asa.org.uk/adj/adj_3320.htm
http://consumer.org.nz/whatsnews/4july97.html#fuel
http://www.foxall.com.au/tccv/fuelstar.html

Likewise recent tests by the FHBVC, where only two "in-line"
catalyst-sellers were prepared to put their products forward
for the test. Both failed, BTW...

You're better off spending your money on a proper set of
hardened valve-seats...

//PJML//

Dave

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Apr 27, 1999, 3:00:00 AM4/27/99
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In article <372074...@not-for-mail.nerc-swindon.ac.uk>, Pete Lucas

<pj...@not-for-mail.nerc-swindon.ac.uk> wrote:
>
> Or look at a range of websites such as those from the Advertising
> Standards Authority, or the Australian Triumph-owners' club, where
> you'll find plenty of evidence that the "in line fuel catalysts"
> don't work, and the promoters of such things can't produce evidence
> of *how* they could work....

But they offer a 'guarantee' so you can't possibly loose. Or not. 90days or
3,000 miles, which even an 'A-Series' will manage on 'lead memory'.

Dave

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Apr 27, 1999, 3:00:00 AM4/27/99
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In article <7fpk0t$epg$1...@nclient3-gui.server.virgin.net>, "Greg Walker"

<greg....@virgin.net> wrote:
>
> One of our clients has come up with what we believe to be a simple safe
> and
> complete solution to the demise of leaded petrol. I can only suggest you
> have a look at their site on

Interesting to read their installation instructions. If fitted in
conjunction with a reconditioned cylinder head with freshly reground valves
and seats, the engine must be run on 4-star for 1,500 miles before using
unleaded. I wonder why................

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