A mechanic at Toyota Walton motors told me this that if you feel that your car is loosing pickup, get the CAT removed as its installed once n can never be cleaned.
Secondly from where did you get the injectors cleaned? That's also some sort of a difficult process i believe.
Thirdly, I have been using Micking 10w-40 and the car has done exceptionally well. It easily gives 15-15.5kmpl in winters and 12-13kmpl in summers with AC. Do you think Kixx 5W-40 will be good for our summers?
Fourthly, tell me which tyre size are you using? 185/70R14 or 165/65R14 or some other?