Fuel companies Z Energy, BP and Mobil are investigating a quality issue that affected petrol stations from mid November to December.
Inaccurate fuel gauge readings have been linked to fuel sold in Auckland, Fairfax reported.
A higher level of active sulphur in the fuel interfered with some vehicle components, said BP spokeswoman Leigh Taylor.
"As an industry we haven't seen anything like this before."
The issue included 91 and 95 octane fuels, Fairfax reported.