system4 fuel saver- does it?

I know one chap who swears they work, but he sells them for a living. He couldn't prove it, so I don't believe him.

No.

Lets just say they did work as a catalyst and changed the burn characteristics of the fuel, how much do you think your ECU will adjust?

They've moved on from claiming they save leaded engines being damaged by unleaded petrol, then? After being prosecuted by trading standards? Suppose they'd have to - not so many 'leaded' cars around these days. That's the beauty of snake oil. Can instantly change to any use you can invent.

=A0 London SW

Hi- thanks- I'll take that as a 'no' then (lol) (They are still claiming the leaded thing also) I thought it sounded too good to be true-Don't know how they get away with it- you would think someone must have contacted trading standards- and from what you say they are unlikely to be able to provide proof of their claims- Mike

The snag is it's also difficult to disprove their claims without spending a deal of money. And since it's a low cost item few could be bothered.

There are several ways that they manage to delude people into thinking that it works. The lead thing relies on the fact that most old cars will run happily on unleaded for a few thousand miles before any damage occurs. (My Triumph Vitesse has done at least 15,000 miles on unleaded with no additives.) Increased fuel efficiency claims probably rely on people following the installation instructions to the letter. And since those instructions will involve giving the car a damned good service, it's hardly surprising that it runs better afterwards.

I fell for something similar once when I was young and naive. It was an oil additive called Slick 50 (may even still be around). Once "installed" and having checked the plugs, timing, carb settings, etc., I studiously drove for 20 miles at exactly 40mph as instructed, and would you believe, my old Viva managed 45mpg! Amazing.

Have a read at this site:

It's bollocks.

And that site would be....

The site is snake oil too...

At I wild guess, how about:

Ian

Thanks Doki really informative. ;)

No, in a word, it's "bollocks".

Mike P

More bollocks?!?--

Is that a confused question or a statement.

Well, pretty much. The report starts with "a series of tests with the Broquet Fuel Catalyst fitted into the fuel system of a standard

See also

Question!

Question

It's referring to a carburettor equipped vehicle & doesn't even quote the actual test results, just their own summary & conclusions.