agesilaus wrote:
This depends on where you are towing, Full Time you will probably hit roads like Utah 12 outside Escalante with a 12% grade. A gasser will do it but it will be running at high rpm. And check out the expected mileage on those gassers, you will think you are driving a big Class A. You will join that bunch of irritating posters who continuously put up posts saying "how to I get to point B from point A without any steep roads?"
Cranking up the RPM on a properly running engine does no harm.
Unless you are doing 30-50k miles per year, you aren't going to make up the initial price on fuel savings with a diesel.
Modern gas engines have incredible power compared to 25-30yrs ago. 350-400hp is normal and plenty of power.
Where a diesel offers advantage:
- Turbo means you don't lose power with altitude...but unless you get extreme, it shouldn't be a real problem.
- Newer diesel trucks have engine braking...which is a really nice feature coming down mountains.
Unless you plan to spend a lot of time in the mountains, diesel falls into nice but not needed.