well I did what you guys recommended and took it to the lube place...

it was about 2 qts low and they also told me that my radiator cap was suppose to hold 16lbs of pressure and it was holding 0lbs so they sold me a new cap.

would the low radiator pressure hurt anything?

I've had the truck for a month and a half and already put 2500 miles on it, i do a lot of driving for work and look to do a lot more.

so far i love the truck, it's power and it's ride. prolly the best vehicle i've ever owned

thanks for the help, I'm sure I'll be back for more...

P.S.
My truck thinks it's a mustang!

 

Hmm, this is kind of late, but yes, you do need to keep your coolant under a pressure cap. If there is no pressure, you drop the boil temperature a great deal. Which means on those long hauls, the coolant could boil and your engine would overheat.