? Class-A Gas Climbing MPH

With 1995 gas had one mountain “hill” I was a little unsure I was going to make it up. Had a 275 hp v10 that was not great but never down to 5mph on a “hill”. Now with a 400 hp Cummins I’ve had newer gas coaches nearly push me up some mountain passes. Things have changed over the years.

dcmac214 wrote:
What's the real gas class-A hill climbing MPH?

Talking to couple old timers while wandering around RV show, one commented and other agreed that a gas Class-A slows down to about 5mph climbing our Western Mountains. I've had occasion to follow some on prior trips and can't recall ever being slowed down anywhere near single digit MPH.

Sounds like a couple of old timers who didn't know how to drive a big rig. Yes you can have trouble even in a diesel if you don't know how to manually shift it. My biggest slowdown is geting caught by traffic, mostly big trucks. Then just slow down and enjoy the scenery.
Most newer gas coaches are Ford V10s You can reve them and not hurt them as they have a rev limiter.
Bill

dcmac214 wrote:
Talking to couple old timers while wandering around RV show,

Those old timers probably also said, as kids, they walked to school and home every day in 4 feet of snow, uphill both ways. :)

I pass Class A gassers all the time on the steepest Western climbs but none are doing just 5 mph.

Class A is a wide brush stroke. There are overloaded, underloaded, towing, not towing.

Living in Denver we travel the mountains a lot. Sometimes I'll get behind a Class A towing going as low as 25, never 5. Our diesel can get down to 35 in Colorado towing.

As old timers, they are probably remembering way back to the 80s with aspirated gas engine RVs, and back then the worst were pickups pulling campers that were geared wrong. You don't see that today with diesels in the pickups.

Never hit a mountain highway in the Western mountains where I could not keep up with traffic, and passed quite a few trucks in my GM 8.1L powered Monaco coach, with the Allison transmission, while towing a Chevy HHR. I do have the UltraTune from Brazels, which helps but I really didn't have any serious problems before I got the specific tune for mountain climbing. I never saw anyone in any RV at single digits altho I guess it is possible if they were having overheating issues which can happen in any coach, diesel or gas.

Me thinks they exaggerate just a tad...5 is pretty slow for sure. I have never seen one slow that much here in the Western States. Colorado maybe? Even then 5 is pretty darn slow. Specially the newer gasers. If your talking western mountains in Oklahoma I would say for certain that is not going to happen. Your tallest mountain is 5700 or around that. Not much of a climb at all. So I would say no that is not accurate.