I just had a Astrostart system installed for $265 at a local audio shop. The thing is awesome - can't remember what range it is rated for but I have been testing it expecting it to fail and it hasn't yet. They can program in the delay for diesels. I think almost any remote start can do that. They also can adjust the run times and usually set the diesels for a little longer warm up time but you can let them know how you want it programmed.