The best rule of thumb for pasta water is "as salty as the sea". So after adding about 3 tbl.. of salt taste the water, if it is salty there is too much, if it isn't then you did it just right. As far as oil is concerned, some types of pasta stick, such as tortellini and ravioli, so use about a teaspoon of olive oil. As for other pasta's, as long as you give it a good stir after about 30 secs. in the water you should not have any sticking at all. Good luck and happy cooking!!