how do you know bp fuel is cleaner than shell, caltex and how did you test this?? x2!!! That's an outrageous claim. I just did nearly 650km on a tank of Vortex 98, calculated around 7.8L/100 km. That's after warming my car up for 5 mins every morning, driving in peak hour to uni everyday and revving to redline in 1st and 2nd gear fairly regularly. I'm getting anywhere between 600-700k's(Normally pull 650 if not too much thrashing about) from a full tank of V-Power, warming up every morning, driving in traffic, quite a bit of lift too! I prefer to put v-power in my car, after using fuels like caltex vortex and bp ultimate or whatever, and then putting in some V-power, i can instantly feel a bit of difference, my engine feels like its revving more freely or something. I do feel Shell V-Power rev better compare with Caltex too...even on stock 1zzfe :) Also, drive by wire corolla (early model till 05) also got 100KW engine.