Courtot garage, known as the old mobile garage, is now the only service station in Daylesford that has diesel available.

With people driving around the district looking to fill up and harvest underway it is expected to run out by tonight.

One customer said he was contemplating draining his tractor just so he could drive his children to school.

Management has put at $40 fill up limit to make the diesel stretch to as many people as possible.

The shortage of diesel has been caused by issues with production at the Shell refinery in Geelong.

Customers across Victoria had been affected by problems with the supply chain, Shell Australia spokesman Paul Zennaro said

He told the Bendigo Advertiser the problems at the Shell refinery in Geelong were being addressed.

"We're working to reinstate production by this weekend. Shell employees are doing everything they can," he said.