Rhyl residents Gwil Ritchie and Mark Waterworth are organising the "go slow" at 20mph protest on July 4 from Stanlow Oil Refinery, Ellesmere Port, to the Welsh Assembly offices in Colwyn Bay, where a petition will be handed over.
More than 100 campaigners have so far agreed to join the planned protest, which is being organised by Mr Ritchie and Mr Waterworth through the Fuel Protest 2008 North West UK and Wales group on the social networking website Facebook.
Mr Ritchie, a self-employed horse transporter, said: "I have definitely noticed a big difference over the past few months due to the rising prices, so in the end we realised that we just had to do something about it.
"We sat down and came up with the idea and started up the group on Facebook so we could try to reach as many people as possible.
"The response that we have had so far has been absolutely overwhelming – our Facebook members are doubling every day – and we are still encouraging as many people as possible to get involved."
In an online poll on the website of the Journal's sister paper, the Evening Leader, 86per cent of readers voted in favour of the "go slow" event as public unrest grows at the ever-increasing costs of fuel.
Mr Ritchie and Mr Waterworth are to spend the next four weeks convincing motorists across the region to take part in the protest. They have also started petitions to the Government in Westminster, calling for a cut in fuel duty.
Mr Waterworth, a pub manager, said: "I travel around a lot as part of my work and I have seen a 30 to 40per cent increase on the cost of my journeys since the beginning of the year.
"We have just decided that something needs to be done. We have sat around for years now putting up with ever-increasing prices.
"Now that the cost of fuel has passed the £1 per litre mark, it has escalated out of control. Something needs to be done to tackle the situation now."
The protest is scheduled to set off from Stanlow at about 10.30am on July 4.