I go roughly 3k, sometimes I just can't do it then and there so I'll end up a couple hundred miles over. I run 15W40 Rotella T and Motorcraft filter. I change the fuel filter every other oil change. I'm at 3500 on this oil, haven't had time to change it yet between working on the bikes and the house and everything else that doesn't include chnging the oil, so I've been driving the Tbird instead. Of course with the work I've put into the bird I could have changed the oil in the truck a couple of times by now.
Edit: Done now, figured I should do it before the snow hits here.
Last edited by overl0rd : 02-03-2006 at 07:42 PM.