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12-08-2018, 12:43 AM
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#1
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Bus Nut
Join Date: Jun 2016
Location: Lafayette, Indiana
Posts: 333
Year: 2003
Engine: DT530
Rated Cap: 84
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MPG Expectations
What kind of MPG can I expect from a DT530 with an unlocked 3060?
How much will towing a flatbed with a van on it hurt me?
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12-10-2018, 08:34 PM
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#2
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Bus Crazy
Join Date: May 2017
Location: Chattanooga, TN
Posts: 1,413
Year: 2001
Coachwork: Thomas
Chassis: Thomas
Engine: CAT 3126
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Gearing and cruising speed will matter a lot. But it is hard to guess wrong for a full size bus if you guess 6-9.
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12-11-2018, 09:31 AM
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#3
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Bus Geek
Join Date: May 2009
Location: Columbus Ohio
Posts: 20,057
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
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alot has to do with gearing and terrain.. you DONT want to lug that DT.. ideally you'd like your highway cruise 1700-1900 on that engine in 6th.. and then a downshift to 5 takes it to that 1900-2100 range... lower you'll lug it and kill your MPGs.. too high (above 2300 you make lots of heat and less power) ..
weight plays a part for sure esp if you are climbing and descending grades..
I think 6-9 with your trailer is a good estimate
-Christopher
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12-11-2018, 09:58 AM
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#4
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Bus Nut
Join Date: Jun 2016
Location: Lafayette, Indiana
Posts: 333
Year: 2003
Engine: DT530
Rated Cap: 84
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Bummer. I was wanting 20. Jk
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12-11-2018, 11:08 AM
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#5
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Bus Geek
Join Date: May 2009
Location: Columbus Ohio
Posts: 20,057
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
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Quote:
Originally Posted by T-Bolt
Bummer. I was wanting 20. Jk
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I got 20 once in my red bus.. I was heading to florida right near a massive cold front... the north winds were gusting to 35 and i was headed south.. lol..
-Christopher
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12-11-2018, 11:12 AM
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#6
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Bus Geek
Join Date: May 2016
Location: Eastern WA
Posts: 6,404
Year: 2002
Coachwork: Bluebird
Chassis: All American RE (A3RE)
Engine: Cummins ISC (8.3)
Rated Cap: 72
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My Bluebird with the 8.3 and 3060 gets 9-10.5mpg
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12-11-2018, 02:49 PM
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#7
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Bus Nut
Join Date: Jun 2016
Location: Lafayette, Indiana
Posts: 333
Year: 2003
Engine: DT530
Rated Cap: 84
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I have a 4.83 gears. No clue if that's good or not.
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12-11-2018, 03:07 PM
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#8
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Bus Geek
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,830
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
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Quote:
Originally Posted by T-Bolt
I have a 4.83 gears. No clue if that's good or not.
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With OD and full size tires that's a nice ratio.
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12-11-2018, 03:17 PM
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#9
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Bus Geek
Join Date: May 2016
Location: Eastern WA
Posts: 6,404
Year: 2002
Coachwork: Bluebird
Chassis: All American RE (A3RE)
Engine: Cummins ISC (8.3)
Rated Cap: 72
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Quote:
Originally Posted by EastCoastCB
With OD and full size tires that's a nice ratio.
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Agreed. I have 5.29's and, at times, I wish for 6th gear or a slightly taller rear.
Without 6th opened up, I think 4.83 is a great highway gearing.
If you are able to get 6th unlocked, 4.83 may be a little tall. In my very humble opinion..... We don't need to go 85mph in our buses....
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12-11-2018, 04:49 PM
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#10
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Bus Nut
Join Date: Jun 2016
Location: Lafayette, Indiana
Posts: 333
Year: 2003
Engine: DT530
Rated Cap: 84
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6th is unlocked already. Originally ordered as a sports bus so set up for the highway.
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12-11-2018, 06:18 PM
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#11
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Skoolie
Join Date: Feb 2018
Location: Chattanooga, TN
Posts: 234
Year: 2000
Coachwork: Amtran
Chassis: Genesis
Engine: DT466
Rated Cap: 84lug
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Quote:
Originally Posted by T-Bolt
What kind of MPG can I expect from a DT530 with an unlocked 3060?
How much will towing a flatbed with a van on it hurt me?
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my 15 window dt466 (7.6) puller gets a lil over 11 mpg
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12-12-2018, 06:18 AM
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#12
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Bus Crazy
Join Date: Feb 2017
Location: The West
Posts: 1,209
Year: 1998
Coachwork: MCI
Chassis: 102 EL3
Engine: DD 60
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I've spent a lot of time getting the average for my coach. I admit that it varies a little but generally comes out to 5,001 MPG.
I know...
This is much better than most people get and I'm not sure what they are doing wrong.
For me, the fuel consumption reported by my gauge is usually about 3 MPG climbing a hill. I then record the consumption going down the hill - usually 9999.9 MPG. The math is then pretty simple, add the two data points and divide by the number of data points (2). So, 9999.9 + 3 = 10,002.9 / 2 = 5001.45 MPG.
I feel very good about this number as I am pushing around about 46,000 lbs with a Detroit Diesel 60.
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12-12-2018, 07:06 AM
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#13
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Bus Geek
Join Date: May 2009
Location: Columbus Ohio
Posts: 20,057
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
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MPGs sre very much speed dependent.. i think we all should post our MPGs with our cruising speed.. I just did a 1200 mile road trip and ran 65 up.. (into a decent headwind) and ran 67 going back (very little wind).. the weather is cold so I had a lot of idle time. and I still got just about 11.
-Christopher
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12-12-2018, 08:25 AM
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#14
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Bus Nut
Join Date: Jun 2016
Location: Lafayette, Indiana
Posts: 333
Year: 2003
Engine: DT530
Rated Cap: 84
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Quote:
Originally Posted by JDOnTheGo
I've spent a lot of time getting the average for my coach. I admit that it varies a little but generally comes out to 5,001 MPG.
I know...
This is much better than most people get and I'm not sure what they are doing wrong.
For me, the fuel consumption reported by my gauge is usually about 3 MPG climbing a hill. I then record the consumption going down the hill - usually 9999.9 MPG. The math is then pretty simple, add the two data points and divide by the number of data points (2). So, 9999.9 + 3 = 10,002.9 / 2 = 5001.45 MPG.
I feel very good about this number as I am pushing around about 46,000 lbs with a Detroit Diesel 60.
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Lol. Seriously it actually got a laugh from my wife.
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12-12-2018, 08:33 AM
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#15
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Bus Nut
Join Date: Jun 2016
Location: Lafayette, Indiana
Posts: 333
Year: 2003
Engine: DT530
Rated Cap: 84
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Quote:
Originally Posted by cadillackid
MPGs sre very much speed dependent.. i think we all should post our MPGs with our cruising speed.. I just did a 1200 mile road trip and ran 65 up.. (into a decent headwind) and ran 67 going back (very little wind).. the weather is cold so I had a lot of idle time. and I still got just about 11.
-Christopher
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Agreed but bus details should be included. (Engine, trans, OD, length, towing...)
This is the number one question people ask when they learn I have a bus. "You own a bus? That must get terrible mileage." With a family of 8 we have driven our van all over the country and get around 17mpg so relatively speaking the bus is really efficient.
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12-12-2018, 11:37 AM
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#16
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Bus Geek
Join Date: May 2009
Location: Columbus Ohio
Posts: 20,057
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
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Quote:
Originally Posted by T-Bolt
Agreed but bus details should be included. (Engine, trans, OD, length, towing...)
This is the number one question people ask when they learn I have a bus. "You own a bus? That must get terrible mileage." With a family of 8 we have driven our van all over the country and get around 17mpg so relatively speaking the bus is really efficient.
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in my case my bus is a 6 window bluebird on a 3800 Chassis..(23.5 feet) GVWR is 17000 (I havent got actual axle weight).. engine - 190HP T-444E tuned up to 230HP. Trans - 6 speed allison 1000. (1550 RPM at 65 MPH 6th gear). (1750-1800 RPM at 65 MPH 5th gear {it likes this best})
-Christopher
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12-13-2018, 08:57 AM
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#17
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Bus Crazy
Join Date: Feb 2017
Location: The West
Posts: 1,209
Year: 1998
Coachwork: MCI
Chassis: 102 EL3
Engine: DD 60
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Quote:
Originally Posted by T-Bolt
... so relatively speaking the bus is really efficient.
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I rarely use non-truck stops for fuel but once at a 'gas station', someone made a comment (that sounded a little snide) about the horrible mileage 'that thing' must get. I simply asked them; "What kind of mileage does your home get??"
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12-13-2018, 09:56 AM
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#18
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Bus Geek
Join Date: May 2009
Location: Columbus Ohio
Posts: 20,057
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
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Quote:
Originally Posted by JDOnTheGo
I rarely use non-truck stops for fuel but once at a 'gas station', someone made a comment (that sounded a little snide) about the horrible mileage 'that thing' must get. I simply asked them; "What kind of mileage does your home get??"
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then you ask them.. "How much FUN per galloin do you get in that corolla?"
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12-13-2018, 01:46 PM
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#19
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Bus Geek
Join Date: May 2016
Location: Eastern WA
Posts: 6,404
Year: 2002
Coachwork: Bluebird
Chassis: All American RE (A3RE)
Engine: Cummins ISC (8.3)
Rated Cap: 72
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Quote:
Originally Posted by JDOnTheGo
I rarely use non-truck stops for fuel but once at a 'gas station', someone made a comment (that sounded a little snide) about the horrible mileage 'that thing' must get. I simply asked them; "What kind of mileage does your home get??"
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Hey JD,
What kind of mileage do you really get?
I managed 7.25 OMG pretty consistently running cross country in my Eagle with 8v71 & HT740.
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12-16-2018, 03:52 AM
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#20
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Almost There
Join Date: Jun 2018
Location: Alaska
Posts: 80
Year: 1996
Coachwork: American Fire & Rescue
Chassis: IH 4900
Engine: DT466 250hp P-pump
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T-bolt, what year/size is your bus?
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