These "Fuel Savers"

[Aero_Bar]

Do you people think these are worth the bother..?

http://cgi.ebay.co.uk/FUEL-SAVER-FO...ryZ72205QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

 

[GrahamC230K]

try a SEARCH.

 

[Silestanix]

http://www.mbclub.co.uk/forums/showthread.php?t=39690

 

[LeighW]

Do you people think these are worth the bother..? ]

In a word, no.

 

[BlackC55]

I am in the middle of testing one.

 

[LeighW]

Seriously, they cost buttons, if they worked, manufacturers would fit them as standard, surely? Snake oil, methinks.

 

[BTB 500]

Yup fuel economy is a big selling feature nowadays .. this stuff has been around for many many years, if there was any real benefit the car manufacturers would all use it. They don't.

 

[prprandall51]

Wow, the advert says it will pay for itself within 30 miles. Hmmm, it costs £13 to buy and yet to travel 30 miles only takes 5 litres / £5 of fuel in an average car even without this wonder of science. Therefore, for every 30 miles travelled the seller must be crediting your current account with £8!

On that basis, I would say that it is definitely worth it.

This is probably the reason why manufacturers dont fit it as standard. On the other hand, looking at Ford and GM's losses maybe they are crediting owners' bank accounts.

 

[glojo]

Wow, the advert says it will pay for itself within 30 miles. Hmmm, it costs £13 to buy and yet to travel 30 miles only takes 5 litres / £5 of fuel in an average car even without this wonder of science. Therefore, for every 30 miles travelled the seller must be crediting your current account with £8!

Fit two and live off the earnings

John

 

[R2e]

"Basically untreated fuel tends to clump together due to the attraction of molecules, so when the cylinder burns the fuel it is inefficient. This effect will cause your engine to not use the fuel as it could, i.e. decrease in performance, lower mileage and often carbon build up. "

I wonder if they could explain how these big lumps of fuel manage to get through unaffected by the atomisation process of the average injector. Fuel coming out of an injector will penetrate the skin, that's how small the particles are.

 

[Rob77]

I am in the middle of testing one.

What for? To see if they really do come in 3 colours?

 

[crockers]

I am in the middle of testing one.

What are your first impressions?

 

[blicky_1]

I wonder if these will work with LPG ??

 

[gaz_l]

Wow! As they work that well on the fuel lines I bet they would work even better attached to the wiring looms to the ECU. Make sure you fit them as close as possible. It would straighten out all the electricity coming in and out on the wires and make the ECU run much faster. You could probably then overclock the ECU for even better performance!!!

 

[Rob77]

I am in the middle of testing one.

How's the testing going?

 

[BTB 500]

I've just done a long run in my Sharan (to the South of Germany and back), running on cruise control set to 120 kph. Average MPG for the various legs varied from 28 ish to just over 30 - almost 10% variation. That's what I'd expect ... different temperatures (day / night), slight variations in fuel spec. from one fillup to the next, etc. all affect the fuel consumption a little.

The only way to PROVE these devices work is under controlled conditions, in a lab. And every time that's been done, no difference in performance or fuel consumption has been found.

 

[timskemp]

Snake oil, methinks.

Can you get snake oil with additives refined to 229.31?

 

[Rob77]

I've just done a long run in my Sharan (to the South of Germany and back), running on cruise control set to 120 kph. Average MPG for the various legs varied from 28 ish to just over 30 - almost 10% variation. That's what I'd expect ... different temperatures (day / night), slight variations in fuel spec. from one fillup to the next, etc. all affect the fuel consumption a little.

The only way to PROVE these devices work is under controlled conditions, in a lab. And every time that's been done, no difference in performance or fuel consumption has been found.

I totally agree. Just curious when I hear that someone is testing this sort of thing. It might indicate that either they were extremely open minded scientifically or were considering marketing the device

Just call me an old cynic lol

 

[OzC36]

Fit two and live off the earnings

John

glojo's comment is the best so far!

For what it is worth, Wikipedia says, "Most devices on the market are not found to improve fuel efficiency to any statistically measurable extent."

http://en.wikipedia.org/wiki/Aftermarket_fuel_economy_device