Originally Posted by
RichardInSF
Oh gosh, pack a lunch. MickeyD's would be better than most anything you'll see once you get to the vicinity of the Salton Sea.
86 appears to be a main truck route to and from Mexico but I have still never seen it really busy. Haven't been on 111 nearly as much, but I doubt it ever gets very busy although it is mostly 2 lane as opposed to 86 being 4 lane.
Google Maps satellite view seems to indicate four lane for 111 from the Mexican border up to Brawley, for what it's worth.