Victoria has introduced daily fuel price caps to prevent price-gouging at the pump, as residents are urged not to panic buy petrol.Under the new law that comes into effect today, retailers must set their daily price of fuel at 2pm on the previous day.That price is then capped and will apply for the 24 hours from 6am the following day.READ MORE: 'Expected': Fuel shortage to drive up grocery prices as inflation bitesVictoria has introduced daily fuel price caps from today.