Police are appealing for information following three petrol drive-offs in the Macedon Ranges area in the past two weeks.
It is believed an unknown man attended a petrol station on Main Road in Riddells Creek about 8am on November 25.
The man was driving a black Toyota Hilux, with personalised plates YBPSI, and filled the vehicle with diesel fuel before driving off without paying.
Police believe the same vehicle and offender were involved in two previous petrol drive-offs.
The first occurred on Black Forest Drive in Macedon on November 5 about 4.30pm.
The second occurred on Robertson Street in Gisborne on November 24 about 6am.
Police believe the man lives or works in the Macedon area.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential crime report at www.crimestoppersvic.com.au