Each time you spend over $40 on fuel at Z or participating Caltex stations you will have a choice whether to use your Pumped Daily Discount or stack it (which means save it to use later). If you choose to stack your Pumped Daily Discount, it will accumulate, and add to your Pumped Stacked balance.

Eg if you stack a 6c Pumped Every day Discount, then you will have the current Pumped Daily Discount (eg 6c) plus a 6c Pumped Stacked balance available for your next fill (as well as any Pumped Fuel Discounts from Flybuys).

Use the same Flybuys card each time you shop at Z or Caltex to maximise your savings.