e-fuel™ sends an email each week to subscribers illustrating margin trends for either regular petrol or diesel.
Fuel supplier margin trend provides an indication of likely retail price direction. If margins go up, expect the retail price to come down. Or if margins go down, expect the retail price to go up.
The annual subscription to e-fuel is NZD $200 (plus GST) for either regular petrol or diesel.
Note that subscribers of diesel or regular petrol fuel-tab receive a free subscription to e-fuel for that product.