OK, that makes more sense.

A little hard to game it with the promo days since a month of driving around the two islands means we're filling up every couple of days and don't have the luxury of waiting for a promo day, but it's good to know when to take advantage of accumulating vs. spending.

Time's coming to an end, though...one month, 8,000km, and probably $1,000 in petrol later, we fly out on Saturday. It's been a spectacular holiday!