McKinnon service station owner Steven Biviano said one customer drove up to 45 minutes from the western suburbs to buy unleaded fuel at $149.7 a litre.
Mr Biviano said more than 200 motorists seized the chance to buy discounted fuel after he slashed the bowser price by 10 cents between 11am and 12pm.
Unleaded petrol is selling for up to $168.9 in Melbourne today, according to the RACV.
"People were queuing for around the block ... I really didn't think there would be that many," Mr Biviano said.
"There was everyone - young and old - even a small truck pulled up."
I wonder if people are sniffing the petrol before buying?
Even the RACV are in on the act. Scaremongering?
RACV spokesman David Cumming said petrol prices could soar to as high as $171.9 by this afternoon.
"That's what they did last week ... I see no reason why this week wouldn't mirror last week," Mr Cumming said.
But he said as of midday prices had not risen, which was "quite unusual" for Wednesday, typically the highest priced day of the week.
Perhaps some copy editing would help?