Experts have issued a warning as some Australians stockpile jerry cans following surging fuel prices across the country.A Toyota was pictured with about 20 jerry cans attached to the roof in Shellharbour, south of Sydney, last week."Well, petrol is the new toilet paper," a witness wrote on social media, referring to when people stockpiled toilet paper during the COVID-19 pandemic.READ MORE: Victoria's daily fuel price caps now in effect to quash price gougingA Toyota was pictured with about 20 jerry