hmm ma car use to give average of 550-600k in one full tank .. i got the engine overhauled in november 2010 and after that it havent given average of 525 in one full tank and gives lots of black smoke... and takes long time to start....
Radiator is new and working fine and as soon as i switch on the AC car gets heat up and i have to switch off the ac and drive slow then heat needle comes to normal..... the water level is always fine in Radiator...