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robo0121
Joined: 11 Nov 2013 Posts: 49 Location: Birmingham West Midlands
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Posted: Mon Nov 18, 2013 10:36 am Post subject: fuel catalyst |
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Hi.whats your opinions on these fuel catalysts that are just dropped into tank .??? is it true you can just use unleaded..?? |
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ukdave2002
Joined: 23 Nov 2007 Posts: 4127 Location: South Cheshire
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Posted: Mon Nov 18, 2013 11:00 am Post subject: |
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I have to admit to being sceptical........Vehicle manufacturers spend millions trying to squeeze more power & MPG out of engines, whilst at the same times lowering emissions to meet ever more stringent targets....if chucking a lump of something in the tank would make even a small difference, I'm convinced they would have done it by now..?
Dave |
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peter scott
Joined: 18 Dec 2007 Posts: 7126 Location: Edinburgh
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Posted: Mon Nov 18, 2013 2:49 pm Post subject: |
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I can guarantee that half a litre of snake oil applied to the tank once a year far exceeds the claims made for fuel cats.
Peter _________________ http://www.nostalgiatech.co.uk
1939 SS Jaguar 2 1/2 litre saloon |
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ajlelectronics
Joined: 04 Oct 2010 Posts: 168 Location: Gloucester
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Posted: Mon Nov 18, 2013 6:41 pm Post subject: |
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peter scott wrote: | I can guarantee that half a litre of snake oil applied to the tank once a year far exceeds the claims made for fuel cats.
Peter |
You don't even need to go to the expense of snake oil. Just a magic wand waved over the tank will give exactly the same benefit.
I see these things still for sale at the shows and wonder why the sellers have not been prosecuted. _________________ Evans Waterless Coolants
Find this and more at http://www.classicmicrocars.com
Sat TV / Aerial systems etc: http://www.ajlelectronics.co.uk |
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pigtin
Joined: 23 Nov 2007 Posts: 1879 Location: Herne Bay
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Posted: Tue Nov 19, 2013 10:20 am Post subject: |
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If we prosecuted everyone who made false claims no politician would be safe... _________________ Due to the onset of my mid eighties I'm no longer sprightly and rarely seen in my Austin special. I have written a book though. https://amzn.eu/d/7rwRRqL |
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Bitumen Boy
Joined: 26 Jan 2012 Posts: 1740 Location: Above the snow line in old Monmouthshire
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Posted: Tue Nov 19, 2013 6:39 pm Post subject: |
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pigtin wrote: | If we prosecuted everyone who made false claims no politician would be safe... |
Nor any journalist |
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jessejazza
Joined: 18 Mar 2009 Posts: 75
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Posted: Mon Dec 16, 2013 11:11 pm Post subject: |
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peter scott wrote: | I can guarantee that half a litre of snake oil applied to the tank once a year far exceeds the claims made for fuel cats.
Peter |
What is snake oil?
Regarding a fuel catalyst - I did try some and it did make a difference. But seems there are a lot of folk making these things... when Broquet developed this secret formula for stimulating fuel a lot seem to know know about it! It certainly did work in WW2 Russia for the Hurricanes we supplied to the Russians.
But it never protected the heads from recession so their claims are ??? Recession would be slightly reduced as less carbon deposits are finding their way onto the surfaces.
Fuel quality certainly varies; I only use Shell, BP, Esso and never supermarket fuel. For my best cars I use superunleaded as that is closer to the octane rating that the older engines were designed for i.e. 97/98 - which itself will reduce slightly valve seat recession (if heads haven't been done). |
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Inglewood
Joined: 28 Dec 2010 Posts: 183 Location: Stone, Staffordshire
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ka
Joined: 03 Dec 2007 Posts: 600 Location: Orkney.
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Posted: Tue Dec 17, 2013 8:55 am Post subject: Fuel/Alcohol |
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Thought the Alcohol may catch readers eye.
Interesting thread on the Fuel Catalyst, and I agree that if every fraudulent claim was pursued, it would be a quieter world.
The Brochard adverts are well publicised, so I can only assume they have been scrutinised by the legal-eagles, but without raising the whole fuel issue again, just a thought.
We have been using un-leaded fuel for some time now, I not only run a side-valve, but a British twin cylinder motorcycle. I recently had the head off the sidevalve, and whilst it was off, had a look at a few of the valves, and no valve seat recession, just a comparatively clean head.
The bike had a camshaft problem,(dodgy hardening even on a NOS item) but quite a few thousand miles, and the same outcome, so I raise the question, was the scare mongering just that? _________________ KA
Better three than four. |
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V8 Nutter
Joined: 27 Aug 2012 Posts: 588
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Posted: Tue Dec 17, 2013 8:50 pm Post subject: |
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I am not absolutely sure but I believe Merlin engines had Stellite valve seats, which means recession would not have been a problem, even with low octane fuel. The biggest problem would have been loss of power. If the history books are to be believed the Russian pilots were so outclassed by the Germans the planes didn't last long enough to develop engine problems. |
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Roger-hatchy
Joined: 07 Dec 2007 Posts: 2135 Location: Tiptree, Essex
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Posted: Tue Dec 17, 2013 11:06 pm Post subject: |
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Got some old lead paint in the garage do you recon if I mix it with the petrol that will work.
Just changed a headgasket on a tuned E93a last week, about 5.000 hard miles, nice and clean and no sign of valve problems. |
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baconsdozen
Joined: 03 Dec 2007 Posts: 1119 Location: Under the car.
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Posted: Fri Jan 03, 2014 6:12 pm Post subject: |
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Total,complete and utter rubbish.
Ebay and sunday markets are pretty much the last places that still allow this stuff to be sold at. In all the years this junk has been pedalled to the unsuspecting motorist none of the so called catalysts have ever been tested by a reputable and recognised establishment equipped to do such tests and found to have any beneficial effects what so ever.
If you really want to waste thirty quid on what look like (and probably are) a few air gun pellets wrapped in wire netting to stick in the fuel tank there are a couple on ebay right now. _________________ Thirty years selling imperial hand tools for old machinery(Now happily retired). |
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ka
Joined: 03 Dec 2007 Posts: 600 Location: Orkney.
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Posted: Mon Jan 06, 2014 9:13 pm Post subject: |
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Not convinced then?
Follow this to the DTI page....
http://www.broquet.co.uk/ _________________ KA
Better three than four. |
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Phil - Nottingham
Joined: 01 Jan 2008 Posts: 1252 Location: Nottingham
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Posted: Mon Jan 06, 2014 9:22 pm Post subject: |
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No
Not found any need for additives in normal driving. Not burnt a valve out either in 50,000 miles since lead disappeared but if I did would have hardened valve seats fitted from the savings made not buying such stuff _________________ Rover P2
Rover P4
Rover P5 & P5B
Land Rover S2 & S3
Morris Mini Traveller Mk2 |
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petermeachem
Joined: 23 Sep 2013 Posts: 358 Location: Chichester Sussex
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Posted: Mon Jan 06, 2014 10:11 pm Post subject: |
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Quote: | Follow this to the DTI page.... |
Claptrap. Much the same as magnetic water softeners which don't work however much people think they do. And loads of other junk people happily buy.
This is somewhat related. http://www.amazon.co.uk/Bad-Science-Ben-Goldacre/dp/000728487X If you haven't read it and are even a little bit sciency I thoroughly recommend it. Very well written, funny and very eye opening |
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