Hi, I live in Montana, and have been using 5w-30 synthetic since I
bought this rig at 40,000 miles three years ago.  I am now up to 72,000
and it was time for a oil change.  I dumped my oil, and filter and was
about to add oil back in when I realized I had bought 5w-20 synthetic.
After reading the back panel I decided to go ahead and pour since I
really had no choice, am out in the country and my only ride anywhere.
Should I run this a 1,000, 3,000, 5,000 or change as soon as the temps
start getting up into the 70's?  From what I read on this oil it
doesn't look like I've done irreparable harm or have I?  Can I rest
easy tonight?  Please advise, thanks.
patrick