Dear Bros & sis
I confirm the following observation...
My driving conditions worsen lately a bit...more jams, changed to Esso 5000 full tank on my last pump last Friday, only today I need to top it up, mileage clocked is 421.5, pumped a total of 38.75L, I turn on aircon all the way, no more shutting off aircon..
Conclusion, despite worsen driving conditions, changing to Esso 5K seems to improve mileage and pickup power. last time when I use SPC 98, can manage only at best 380, plus I off air-con frequently......