Truck camper mileage

Don't think I've ever run my truck at 80. Way too fast for a sane person

taking speed out of the question.
2018 Cummins Diesel

If I get X mph empty, I would get about 75% of X with truck camper loaded.
towing my 7x14 don't make that much lower because the size if trailer is smaller then the truck camper when you look at wind load.
and I would get around 50% of X towing my 10,000 lb 30' 5th wheel.

SidecarFlip wrote:
Don't think I've ever run my truck at 80. Way too fast for a sane person

I’m not sure if I’d feel safe at that speed with your truck either, but 80 is just the speed limit in parts of some Western States with minimal exits, minimal traffic, and the biggest concern being wildlife. No, you don’t have to go that speed, but I don’t think every pickup driver I see is insane.

10 mpg with towing a utv

I honk my horn at 10mpg, diesel.

Just for comparing old vs new truck technology .
My 454/460 GM and Ford DRWs in the '70s got 4-6 mpg carrying a 10' 6" truck camper at 55 mph (national speed limit). Hell those old gazz hoggs got 8-10 mpg just sittin' or running empty.

5000lb camper, CC set at 60 mph gives me 12-13 on highway cruising with my Ford diesel dually.
But any high wind can cut it by 10% easy.

11-13, but who cares? You gonna sell your truck and camper because you get 11 instead of 13?
I'll drive near 80 empty. Plenty of 75mph speed limits in Texas.
With the camper, I keep it under 70, most of the time.

Anyone with a gasohol engine ever compare $/mile using 91 vs 87?

noteven wrote:
Anyone with a gasohol engine ever compare $/mile using 91 vs 87?

In my opinion,they just got a little better each year..As mentioned above,the 70's vintage big blocks were horrible for mileage yet the ones I've had in the 90's do pretty good if you keep your foot out of it....My old '76/454 in my last rig didn't ever see 10 mpg empty or loaded...

They came along ways in mileage in the late 80's and early 90's compared