Mobil 1 TDT to Schaeffer Supreme 7000

[JEL]

Hello-

I've been rummaging around the web and forums and I have a quick question for you guys. I've been running Mobil 1 TDT 5w40 full synthetic in my truck for just one oil change (was Delo 400 before) and I have found a truck shop in my area that is selling Supreme 7000 15w-40 partial synthetic by Schaeffer's. So my question is, do any of you guys see a problem going from full synthetic back to a partial synthetic or even regular dino oil?

Opinions of Schaeffer seems to be quite high and it would save me a good chunk of change to use the blend vs full synthetic.

Thanks

Schaeffer Oil | Supreme 7000 15W-40 Synthetic Blend Motor Oil