45 is a "town" plug intended for short trips, and has a higher heat range to keep deposits burned off the plug tips."
By description, this makes more sense to use.
For a truck that is primarily for show, I would agree that the R45 sounds like a good option. My intention is for this to be a working truck that I can haul lumber to inlaws 75 miles away or take to the park with the kids.
The R44 seems like a better option for my use case.
