Thank goodness we’ve got the NZ Automobile Association (AA) giving us practical advice on dealing with the end of the era of cheap oil. In this Stuff article, AA spokesman Mark Stockdale suggests that one way to beat the petrol price hike is to use supermarket petrol discount vouchers:
“It’s definitely worth shopping around. You can save a lot of money by shopping somewhere else and picking up your petrol somewhere else with one of the vouchers.”
Sounds great, but hang on, let’s check the math. Mr Stockale says that most vouchers offer on average a discount of 4c a litre of petrol. The petrol tank of my car takes 45 litres. 45 litres x 4c = $1.80. So, I’ve slashed $1.80 off the cost of a tank fill. If I fill my car’s tank every week (I don’t but let’s pretend) then 52 weeks x $1.80…I save $93.60 per year.
Am I missing something here? Or is this one of those ‘bargains’ that aren’t really bargains? Sorry AA, but $1.80 a week doesn’t seem like “a lot of money” to me. Try giving your members better advice, like leaving the car in the garage and walking or cycling.

