[sxd45]

If your vehicle isnt going to be off for more than five minutes you will waste more gas on start up, so unless your going to be sitting in the same place for 5-10 minutes than leave it running, face it a big v8 drinks gas and there is nothing to really improve it. Just keep your foot out of it, this is the hardest thing to do! And use your cruise control on the freeway and you should be good. Oh yeah congrats on the truck.