Jump to content

CMNT has a line on a D-Max

CMNTMXR81

Recommended Posts

CMNTMXR81 Senior Enthusiast

CMNTMXR81

Posted
Posted

I have a line on a 65,000 mile 2002 2500HD with the D-Max, Allison, and everything (LT trim). It is a crew cab and still 6.5 bed which is exactly what I want and it's the old front end. :thumbs: The suicide doors on the ext cab were getting annoying in tight parking lots.

 

Anyway, it was a truck used to pull a 5th wheel camper (so he is keeping it in the truck when he sells it!!!), then they traded in the 5th wheel camper for a bus style Monaco 37 foot RV and pull the HD behind the RV. As such they are interested in selling the truck.

 

Anyway, I would like hard MPG numbers to sell it to the little lady. She likes the truck (She liked my old HD) but the fuel economy is what she is fearful of, especially since the beater Olds 88 I've been driving gets 19-21mpg and I drive 70 miles a day.

 

So what are your city and highway numbers? What are they towing say a car trailer or a 5th wheel RV?

MCourson Senior Enthusiast

MCourson

Posted
Posted

City 19-20

Highway 21-23

Pulling 6000lbs tag trailer 13

 

2003 LB7 Duramax/Allison 43,000 miles

KyleBst264 Enthusiast

KyleBst264

Posted
Posted

2003 Chevy 2500hd

Ext. Cab

8 foot bed

LT Trim

Duramax LB7/Allison

16,400 miles

 

Fuel Economy

Unloaded:

-City/Town: 17-19 MPG

-Highway: (67-70 MPH) 19-24 MPG

-State Highway: (55-65 MPH) 20-26 MPG

 

 

Fuel Economy With 20' long, 8.5 wide and about 8.5 high enclosed car trailer w/car, trailer weighs 7,112 lbs:

My last trip: (combined city and highway)

211 miles

12.12 MPG

17.4 gallons used

 

Trailer also has a flat nose.

BlackSilver Senior Enthusiast

BlackSilver

Posted
Posted

2003 2500HD LT 2WD SB XC.

 

Highway empty 21-23

 

Suburban city driving empty 16-18

 

Highway pulling 2,000# boat 17-19

 

Highway pulling 13,000# camper 11-13

 

Highway pulling both (15,000#) 10-12

Machine Enthusiast

Machine

Posted
Posted
MINE MUST BE BROKEN :-(

 

21,000 MILES

2004 CREW 4WD LB LT

 

9-10 MPG 10K POUNDS

12-14 IN THE CITY

19-21 ON THE HIGHWAY EMPTY.

Nothing broken about those #'s.

 

My F-350 is getting 12 city and 16 Highway. It better show some improvemnet as it breaks in. :thumbs:

HillHound Senior Enthusiast

HillHound

Posted
Posted
It is a crew cab and still 6.5 bed which is exactly what I want and it's the old front end. :mad:

Sounds nice. That last HD hood/front end was great-looking! Hope you get it! :thumbs:

Engineer Enthusiast

Engineer

Posted
Posted

I have talked to several DMax owners, and the LOW end of the mileage scale is 18~19 overall combined city/hiway. I have heard of 22 being the upper limit hiway, and one guy I talked to got as low as 16 city.

 

Guy #2's city mileage is better than my hiway. But then again he paid $4K more for his engine. :thumbs:

CMNTMXR81 Senior Enthusiast

CMNTMXR81

Posted
  • Author
Posted

NO matter how you guys cut it, D-Max's pulling trailers are still getting significantly better mileage than my 8.1 did empty on it's best day!

 

I think on one of the last trips I took with it, I was lucky to break a high 11, low 12 in terms of MPG.

CMNTMXR81 Senior Enthusiast

CMNTMXR81

Posted
  • Author
Posted

I'm working on it. It probably won't be until sometime in October though before a decision is made for sure whether or not he's going to sell.

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.4k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,840
    Total Members
    8,960
    Most Online
    appletrav
    Newest Member
    appletrav
    Joined

  • Who's Online   2 Members, 0 Anonymous, 504 Guests (See full list)

  • Latest Articles

  • Posts

    • newdude
      2 speed transfer case optional now?

      By newdude · Posted

      This is a 1/2 ton thing ONLY.  All HDs 2020-2026 have the two speed transfer case, with Autotrac as an option.     1/2 tons 2019-2026, regular 4x4s come with a single speed case (no 4LO!), and trucks with Z71 ordered, or all Trail Boss trucks come with the 2 speed case.  2 speed case is also an option on WT, and is also standard on High Country.  
    • newdude
      Different requirements for oil filters?

      By newdude · Posted

      2013 5.3 still to this day calls for the PF48 filter.  Which as a 15psi bypass pressure.     There is a TSB, 17-NA-157 that talks about the PF-63 and PF-64 filters which have a higher bypass rating of 22psi.    TSB HERE - temp.xml   "Beginning in 2012, the oil pumps began to regulate main gallery feedback instead of pump out pressure. This means that the oil pump now does not begin to regulate until pressure is built up to the main gallery. This change reduces the amount of time it takes to provide oil to the engine bearing and lifters during extreme cold start conditions.  Main gallery feedback oil pump control systems are present on the following engine families which use Spin-on oil filters: Small Gas Engine (SGE), Large Gas Engine (LGE), High Feature (HFV6) Gen2 and Small Block Gen5 gasoline engines. These engines with the main gallery feedback oil pump control systems are factory built with an ACDelco® oil filters"   It also calls out what engines use those filters.  The gen 4 small blocks were not on that list (LMG, LC9, L9H, L92, L94, L20, L96).  Gen 5 small blocks use the higher pressure filter.          That all said...   Your 7045 Napa filter is the PF63 equivalent, with 22psi bypass.  You are already using the higher bypass pressure filter.  You CAN keep using it, you don't technically have to use it though.  
    • Grumpy Bear
      Different requirements for oil filters?

      By Grumpy Bear · Posted

      Do you know WHY the filter relief setting was increased to 22 psig?    When the new system goes into the second stage the pump volume ramps up considerably. It was found that the 15 psi filter bypass setting put the filter in bypass on a warm engine when the second stage was activated. Raising the filter bypass setting forced the filter to do what it designed to do. Filter. Preventing debris from circulating during high load, high rpm operation.    So next question is how did GM find this out? VLOM/lifter failures and a deep dive by Melling Corp.    Last question. Is it required? Look at it like this; a motor may be equipped with a rev limiter. But it only works if the set point in reached. That 22 psig setting only matters if the pressure differential across the filter media exceeds 15 psig during normal warm operation. Second stage kicks in around 3000-3500 rpm.    I can't answer your question because I don't know you and how you use the truck. But I think there is enough information here to let you decide for yourself. 😉
    • Coastie05
      give me some tips to make my truck look better

      By Coastie05 · Posted

      Go back to OEM wheels. 
    • newdude
      2020 Trailboss 6.2 replacement

      By newdude · Posted

      Probably not their first rodeo, so it should go as planned most likely.  Typically the service manager or tech doing the swap will put some seat time to shake it down after they get it all put back together.  We usually put 50-100mi before we hand them back so if something happens, its not after you get it.  A coolant leaks, oil leaks, a ground left off or loose, vibration, etc.     The new engines so far have been good?  There's been a couple that have popped out there again (the replacement engine) but most have been okay.  

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...