Delo 5w-40 synthetic

After trying twice unsuccessfully to get the local mobil dealer to call me back so that I can buy delvac 1, I am going to try chevron delo 400 synthetic my next oil change. I wanted to try delvac, but am refusing any more to deal with anyone that wont return a phone call for $100 worth of business. 17.42 per gallon and the local dealer that also carries baldwin filters keeps it in stock all the time. After the last price increase on mobil 1 at walmart I decided to do something different. Will do a uoa and report. Dan