Fuel Saving Magnets

[Massive]

Ive seen these advertised ebay and think they are just a con as i dont see how a magnet can save your fuel, you still need the fuel to power your engine, if they did work wouldnt it stop as much fuel getting to your engine which sounds wrong to do that to your engine.

Has anybody tried one, or do you think its a load of rubbish?

[pgarner]

this has came up before massive
http://www.torquecars.com/forums/f8/fuel-magnets-1659/

basically there a waste of time

[HDi fun]

They are a a waste of time and money.

Oil filter magnets are good though - keeps the ultra fine ferrous dust from cirulating round the engine.

[StevieDB9]

I did a presentation at uni on how advertisements use "science" to sell the products.

The components of fuel have no magnetic properties but even if the did, aligning the molecules with a small magnet for better combustion is just daft.

Youre quite right, a pure con!

[sbtUK]

I'm pretty sure there's an episode of mythbusters where they tried out a whole lot of "fuel saving" devices. From what I can remember: none of them worked, and a few of them actually made the fuel economy worse.

[HDi fun]

Castrol used a similar approach with Magnatec oils. Somehow implying that its oil had magnetic qualities and would cling to metals. Not sure how this works with all-alloy engines......

[StevieDB9]

im not sure what exactly but there will be organoelemental components incorporated into the oil that will have some affinity for the metal. was actually at a job interview at BP a few months ago and was hoping to go to the castrol division. tried to get them to tell me what was in magnatec but it was trying to draw blood from a stone. i did however, manage to embarrass them into admitting that BP ultimate is a con, only useful for already powerful engines. and the cleaning properties of the petrol only take effect after about 30 tanks worth, which equates to about a years wages! says alot when one of the senoir managers at the plant i was at buys Tesco petrol

First oil change I done on the car I used magnatec and it certainly quietened down some noisy components of the engine.