They tried some thing simular in Melbourne it did absolutly nothing as it did not get common support and fizzed out, we have all the large super market chains offering 4c a litre of the cost of petrol if you spend $30 or more at their shop, so prople go to these stores and spend their money to get the docket for the discount, so lets look at the process in detail :- most cars have around a 60 litre tank assuming they are driving around on fumes, they buy their food get the docket then go fill the car that cost $83.40(@$1.39ltr) + $30.00 for the food = $113.40 and for that they get $2.40 back on the petrol that has a inflated price to cover the cost of the 4c program, so how dumb are we, have we forgot you dont get something for nothing.

by the way Sharni LPG is 42c here