Nakshire,
Just to share with you...
Use a W30 engine oil.
Latio default tire pressure is 230 (front), 210 (back). I pump 245 (front) and 225 (back) when the tire is hot, after driving for some 30km.
I use Caltex 95 with Techron for like few months, i believe the Techron has cleansing effect. Got good mileage, but recently switch to Esso Mobil because more discount.
Do not brake unnecessary, when approaching traffic light, let go accelerator for car to slow car a fair bit and then apply foot brake lightly to bring car to stop. Becareful not to overdo this if not u will be road hogging.
SPORTS mode - i think it consume lots of petrol... refrain from using it unless absolutely necessary.
Try it for a few tanks of caltex and see if it helps !