Fuel saving devices have been pulled from market!

Four fuel saving products have been removed from the market because they can't substantiate claims they save motorists money.

In August last year the NSW Office of Fair Trading launched an investigation into six purported fuel saving products, after receiving a number of complaints about their effectiveness.

Four of those - produced by Magnoflow, Prozone, MPG-CAPS and FuelMAX/Super FuelMAX - have now been removed from the market, after the companies were unable to provide independent scientific evidence to back up their claims.

NSW Fair Trading Minister Virginia Judge said the outcome was a win for motorists, particularly during tough economic times.

"This is a great outcome for consumers and sends a strong message to other companies who are thinking of misleading or attempting to rip off their customers," she said in a statement.

"Running the family car is a vital part of a family's budget and fuel saving products must seem like a godsend.

"I urge all motorists to be wary of advertising claims that sound too good to be true."

The two other products subject to the Fair Trading investigation - Fuelmate and the Fitch Fuel Catalyst - have been forced to remove all unsubstantiated claims from their websites and advertising material.

The two companies had claimed the products could "save consumers up to 25 per cent better fuel economy" and "from five-12 per cent fuel savings", Ms Judge said.