wnjj
Cornelius, Oregon
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Joined: 01/11/2007
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JRscooby wrote:I would still like to see side by each comparison, equal weights, displacement, gears, and wind resistance, diesel with exhaust brake to closed throttle on gas engine.
The exhaust brake should outperform the closed throttle. The closed throttle can only pull at most a perfect vaccuum on the top of the piston. The exhaust brake can build a much higher pressure by compressing a full charge of air. More pressure difference = more resistance and more stopping power.
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mosseater
Dillsburg, PA
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Joined: 10/19/2007
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IdaD wrote:mosseater wrote:I don't chime in on diesel vs gas. I personally don't see a need for ME to pony up another $10k for a diesel. My '22 F-250 Supercrew is quite nice with the 7.3. For those comparing peak torque 6.6 v 7.3 you may want to see when that torque curve comes in. About 1000 rpm for the Ford and about 4k rpm for the 6.6 to reach the same number. The 7.3 is a great combo with the 10 spd and has gotten about 20 mpg on decent highway, about 15 average. Around town and idling in 4 wd about 12-13, and 10-11 towing my 8000lb trailer. I'm very happy with it so far.
I suspect the 11.3 average MPG figure on Fuelly for the 7.3 in a Super Duty is a more realistic expectation most folks should have. The 10 speed certainly helps which is why it doesn't average single digits. I think my 2015 Cummins overall MPG average over 100k miles is about 15. A big gasser won't do as well as it regardless of the transmission.
Towing with any weightlYes. But I took this truck with about 1000 lbs on board to Nashville and running 70-80 most of the way averaged 17.8 on the way down and 16.9 on the way home. My 150 wouldn't get 15 mpg off a cliff. This engine runs about 1750 rpm at 80 in 10th and has enough torque to not shift into 8th or 9th unless it's a decent hill.
Nothing get good mileage towing any weight.
"It`s not important that you know all the answers, it`s only important to know where to get all the answers" Arone Kleamyck
"...An unarmed man can only flee from evil, and evil is not overcome by fleeing from it." Col. Jeff Cooper
Sunset Creek 298 BH
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Grit dog
Black Diamond, WA
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Joined: 05/06/2013
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^Agree, not even a contest.
Like comparing the taste of a basketball and a watermelon just be use they’re both round and the same size.
A good exhaust brake on a smaller displacement diesel will blow the doors off the biggest gasser under your hood in grade braking. Hands down.
2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29 - Sold.
Couple of Arctic Fox TCs - Sold
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mosseater
Dillsburg, PA
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Grit dog wrote:Now we’re cookin with gas…..or diesel:…
We got the 20mpg HD gasser club, roflmao, you do realize that’s not a thing,right? Vs the diesel has been more expensive for 20+ years, also umm not true.
And the guy who “won’t chime in” but followed that statement with a paragraph of chiming in…
This is the makings of a good old fashioned geezer.net debate!
How is it not a thing? And I chimed in with my assessment for ME. Y'all can tell yourself whatever you need to hear. I have no need to fabricate anything. Do you understand averages? Or were you eating paste that day?
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blt2ski
Kirkland, Wa
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Joined: 03/15/2001
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You all can take this to the stuck deezals vs gazer thread!
But what suits you best, not what someone says you should buy....
Marty
92 Navistar dump truck, 7.3L 7 sp, 4.33 gears with a Detroit no spin
2014 Chevy 1500 Dual cab 4x4
92 Red-e-haul 12K equipment trailer
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