Since no one has answered you yet Frank@Toronto I guess I'll give it a go.
The price of Esso XD-3 is going up April 1st, which is what this thread is about. No one has posted what the new price will be, but that is something I would like to know myself.
Now, to answer your question. I don't have a recent price, but if I remember correctly a case of 12 1L bottles was $56.03 with tax (that's $4.67 a bottle with tax), and this price was from about September or October of 2005. If I remember correctly that is. No harm in posting the price I suppose since its going up in two days any way.
Comparing to Mobil 1, which I think sells for $6.99 or $7.99 a bottle plus tax (I could be wrong but that's the numbers I remember, if so please correct me) at Canadian Tire and Wal-Mart.
I think Esso XD-3 is a great deal, and most likely will still be a great deal after the price increase after April 1st.