Gull New Zealand general manager Dave Bodger said the fuel discount aimed to bring some early Christmas cheer to customers.

Christmas has arrived early for drivers as Gull lowers its petrol price for a day, offering savings of up to 20 cents.

The cheaper petrol is available from 7am on Thursday, December 17 to midday on Friday, December 18.

Fuel at Gull sites will be no higher than $1.599 for regular 91, with an average price of $1.559.

Across all fuel companies the national price of petrol fell below $1.90 a litre last week, for the first time since February on the back of lower international prices.

READ MORE: Petrol price falls to lowest in 10 months ahead of Christmas driving season

Gull New Zealand general manager Dave Bodger said it was a way for the company to celebrate the festive season and thank Kiwis for their loyalty this year.

"We know this can be an expensive time of year, and also that many people are filling up their tanks for summer road trips."