I may not know much, but... 2 fill-ups ago I went to a Coles station, put PULP in, and got 450km on half a tank (no lie) 1 fill-up ago I went to a Woolies, put PULP in, and barely scratched 300km on half a tank (no lie) Same road and destination for both, similar ambient temperature on both days etc etc. Question is: should I complain?