He did not wash the existing grease on the cv jiont :-#, it looked shiny black :)...the boot was ruptured a few days ago ( thought I was lucky enough to catch sight of it) he just poured almost 60% of the grease tube on the cage and repacked with new boot. The remaining grease was poured in inner cv joint of other side axle shaft because its clip was loose and leaking some black grease too.
I did not read the quntity on the tube, bought it at the spot, but i think it was almost the size of medium colgate toothpaste.