^^^ Agreed - this quality of fuel is very dependent on the servo and how often they re-fill the tank.

If you go to a servo that is always quiet there is a good chance you will get old fuel - the longer it sits in their underground tanks the more contamination it can get.

I use Caltex Vortex 98 in my 2 cars and they run fine, my Mrs prefers BP ultimate in hers though, so go figure...