Petrol and diesel prices biggest financial worry, says Which?
The consumer organisation Which? has called for a delay to the planned increase in fuel duty in January.
A total of 85% of people questioned for a Which? survey were worried about rising prices, while more than a third said they would be using their cars less.
Richard Lloyd, from Which?, said the Chancellor would have a real problem if he continued to introduce an increase in fuel duty.
11 Nov 2012