Sirs,
Am not as sophisticated in the understanding of all the parameters
listed in this discussion (as most). I run (original owner) the vehicle posted in my signature block.
My current tow configuration (at CAT wt. listed) delivers 7-8 mpg
average under load. I tow at 55 mph with tow haul and cruise control.
My "average" RPM level is 2300-2500... on 6% upgrade 3500-3800. Most times maintaining cruise control speeds. I probably "get there" 45 min. - 1 hr. later (maybe a little longer) then most (that is the real import of this discussion isn't it ???). I have never pushed my tow vehicle to "max" but at my current use seems to have performance increase left available... My transmission temp gauge consistently stays 200 - 230.I have always been able to maintain forward momentum even on the steepest upgrades (ie have never rolled backward).
I religiously maintain my vehicle... and recently had the Allison serviced by a service center, not a dealership.... no metallic shavings noted.
10 years of ownership of my tow vehicle has been pleasant ... I hope
I get another 10 . Current unleaded mid-grade (Phoenix metroplex)...
$3.40 - $3.63 , Diesel... $ 3.47 - 3.64 (per Gas Buddy app).
I have made a point to remind myself that I'm pulling a house over mountain grades to get to someplace cool so try not to fret over MPG.... is what it is.
Would I do it again ? Yes.
Charles
edit- my only mod ... K & N filter . Only chip I use is edible.
