Oil changing question?????

I just changed my oil in my durango 2000 4.7L. I used 6qrts of 10w/40. After doing that ,I noticed they used 5w/30 on the last oil change. Should I have used that or is 10w/30? It has 73K on it.

:smokin: yeah you should have but you will be alright untill next oil change. we use 5w30 in our shop