Queues are forming at petrol stations across the region amid fears of supply shortages.
People have reported long waiting lines in Belle Vale, Southport, Litherland, Formby and parts of Wirral.
Travel reporting website Inrix says traffic is slow and heavy on Great Howard Street due to traffic queueing at the petrol station at Costco.
READ MORE: Updates as petrol station queues build amid fears over supply shortages
BP has said some garages in its 1,200-strong network were experiencing shortages – with Esso and Tesco also forced to close a small number of forecourts.
However, one major supermarket has said there are no problems with petrol supplies.
An Asda spokesman told the ECHO the retailer is "not currently seeing any fuel supply issues" and that petrol stations are open as normal.
The Road Haulage Association has said there is a shortage of 100,000 drivers.
Transport Secretary Grant Shapps has not ruled out deploying the army to forecourts or relaxing rules to ease the shortage of drivers.
When questioned about it on BBC Breakfast, Mr Shapps said: "If it can actually help, we will bring them in."
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People are being advised to buy fuel "as usual".
A spokesman for the prime minister said the government acknowledged that there were "issues facing many industries across the UK, and not just in terms of HGV drivers".
He added that there was no shortage of fuel and that there was a "very resilient and robust supply chain".
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