IMO, diesel is worth it if you are towing often or heavy. Even then, a case can be made for gas vs the increased costs.
For short runs/grocery getter - definitely not.
Spot On -
Diesels need to run long enuff to reach normal op temp for more than a few minutes. This allows the engine to lubricate properly and last longer.
In our part of the country 'right now' diesel is only a few cents more /gal than gas BUT I wouldn't count on that lasting long.
Jerry
