I always find friends at PakWheels very cooperative and they helped a lot. Therefore here another problem for which I need your suggestions.

My Santro's AC keep tripping while I am driving. It trips after every two seconds and car start shacking. I have to turn off AC and then ON it after few minutes. This practice make it stable for another 3 or 4 minutes.

Also, while AC is ON, car feels like dragging. with AC ON, car does not hits more than 70km.

Finally, please suggest a good coolant and engine OIL for Santro.