why need to use injector cleaners ts? ur car feels sluggish?
pump full tank caltex and drive at 180kmh on nshwy for 30 mins or so... may be u can feel a bit of difference after that.
if u r thinking of using techron concentrated plus, can consider buying it in msia caltex station. that's what my friend did a few months ago. he said its cheaper than buying it in sg.