Thanks you all very much for your replies!!!
![[Smile]](images/icons/smile.gif)
Lots of good advice and points here, so just let me add some comments...
I will without a doubt use the Mobil-1 5W-30 SS in the colder months and the winter, as it will flow better (how much better I don't really know) and won't have to deal with the heat that the summers here can (and probably do) put out.
Since I've just got the truck (it only has
150 miles on it now), I'll be running the factory fill for however long my research and everyone's advice here decides on. I'm already going to change the filter out at 500 miles, to what filter I don't know yet, but that is already decided on.
The real issue I was wondering about was if it would be better in the summer months to run the Mobil-1 10W-30 SS since the temperatures would only be 50F at the very coldest (at night on a cold night), or is it better to have the Mobil-1 5W-30 SS in there during startup since it's a 5W and will get up through the engine faster?
The disadvantage that the Mobil-1 5W-30 SS doesn't hold up
as well as the Mobil-1 10W-30 SS, or does it?
The driving I'll be doing is a pretty good mix of city and light highway (60MPH and under).
Also, I'm sticking with 3,000 mile oil changes, as this is what my girlfriends Mustang GT schedule is and it's convenient to just change them both at the same time (it's going to work out that when her Mustang is due for her next oil change, my Ranger will be due for its first - good coincidence).
Thanks for the ongoing advice!!!!
Chuck