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-   -   What kind of mileage do you get? (https://www.skoolie.net/forums/f13/what-kind-of-mileage-do-you-get-15.html)

Ray_WA 01-11-2009 09:04 PM

Re: What kind of milleage do you get?
 
Quote:

Originally Posted by CHEESE_WAGON
Assuming a 10% error in delivery reading....

If the pump says I got 10.00 gallons, I actually got 9.90 gallons.

10% of 10.00 gallons is 1.00 gallon, not one tenth of a gallon. Getting shorted ten percent on gas is ten times worse than your math makes it out to be.

-Ray

bk2valve 01-25-2009 05:07 PM

Re: What kind of milleage do you get?
 
Hey Ray, not bad math for a short bus rider.... :D .

My point is: high or low, it is not always going to be an accurate reading going by what the pump says and so any conversation about mileage has to have a very generous +or- factor. Or at least that is my personal filter when I hear talk of mpg.

From another shorty rider...
Brian in NM

wtom24 05-19-2009 09:27 AM

Re: What kind of milleage do you get?
 
We just made a trip from Sacramento to west Tennessee 2600 miles. Ford B-700 with 6.6 litre Ford diesel. 10.4 MPG trip average. Weight is somewhere near 21,000 lbs loaded.

TENSIONSHEET 10-02-2009 04:38 AM

Re: What kind of milleage do you get?
 
a 35' long 11' high bus, built on spartan chassis with 5.9 isb cummins 210HP, 650torque.

I picked it up and drove home from east coast to west coast. (2200miles) Measured MPG very carefully.

13.7 mpg through SC and GA, 11mpg up and down the rockies, 9-10mpg with 40mph headwind in AZ mountains.

I could have had better mileage, it had restricted tailpipe, old oil and underlubricated front axle.

kamoo 10-02-2009 07:32 AM

Re: What kind of milleage do you get?
 
B700 5.9 Cummins in Florida 60mph flat highway got 8.4mpgs

C00LR 11-27-2009 03:32 PM

Re: What kind of milleage do you get?
 
I have a manual shift in mine. I havent figured mileage.......I don't think I wanna know!

Redbear 11-28-2009 08:54 AM

Re: What kind of milleage do you get?
 
Cheese,
Very interesting. Thanks for sharing.

The results are exaggerated a bit by the fluctuation in price differential between low and high test for the three vehicles.
Olds: 20
Cavalier: 10 (but for 89, not 93)
Safari: 30

The Cavalier today would cost a little more on 93 high test, If you normalize to the Safari prices (which I assume are the latest):
Fill up 87 - $40.00, 10 per mile
Fill up 93 - $44.80. 11.4 per mile (assuming 93 has same mileage gain as 89)

FWIW, our Honda gets slightly better mileage on ethanol-free gas than the 10 % ethanol mix, but that fuel is hard to find, because taking the ethanol tax credit doubles the station's net income, according to one dealer. I haven't done a cost comparison.

I did have a Peugeot mini-wagon in the '70s that had a "slant 4, single-overhead-cam hemi" engine. It did not run right on less than 92.

llamaSteve 01-23-2010 08:55 PM

Re: What kind of milleage do you get?
 
The 10+ MPG I got on my first trip home with the new Blue Bird sure beats the heck out of the 6 MPG I was getting out of my E350 gas shuttle bus.

chrisxj2001 03-18-2010 08:19 PM

Re: What kind of milleage do you get?
 
After building the new engine (chevy 350) I now get 11mpg not pulling the jeep and 9 with it tagging along. With the old engine I got about 6. The new engine makes much more power and it only takes half the pedal to do the same mph. Mine is a 4 speed sm465 with granny gear and a split rearend. Not sure of the gear in the rearend but its a tall one. Spinning 2800rpm to do 55mph. Don't mind the slow speed much because when I use it I'm never in a hurry. :D

diananoel1 04-17-2010 12:59 PM

Re: What kind of milleage do you get?
 
1997 Amtran / International 66 pax 35ft. T444E engine, AT545 tranny, 122K, got 10.1mpg on the original pickup trip from Spokane, WA to Cheyenne, WY. I flew in, picked up my bus, filled the tank (100gal) and drove to Cheyenne to fill again. VERY windy and mountainous. 60mph when able on the flat (it won't go faster). Made up to 62mph downhill when straight a couple of times.

jkindt 06-10-2010 01:17 AM

Re: What kind of milleage do you get?
 
Last trip out I got a whopping 4.76 mpg. :? Then I went to do a tuneup and found some issues in the distributor, as well as a base timing of 6 degrees advance (definately not right for a propane fueled engine). I will see what happens next time out, I am hoping for 7-8 mpg, but that might be wishful thinking. 8)

Will 06-19-2010 10:32 PM

Re: What kind of milleage do you get?
 
My last trip from southern Indiana to northern Iowa we made 13.1 mpg. When we went south to Hunting Island, SC the mountains knocked us down to 11.8mpg. Early this month we went from here to Gettysburg and though I didn't calculate mileage the mountains in the northern Appalachians and Allegheneys kicked our butts a little more. Still above 10 though because I didn't buy enough fuel to have gotten worse than 10. Looking forward to another flat trip to Iowa next month though!

bus-ted 08-02-2010 11:11 PM

Re: What kind of milleage do you get?
 
Hey All-
I'm contemplating buying a diesel bus with the 7.8L Brazilian. It's mated to a 5 spd. with a split axle.
Anyone out there have an idea of what kind of mileage it would get? Gracias.

XE1UFO 08-18-2010 08:55 PM

Re:
 
Quote:

Originally Posted by the_experience03
My worst mileage was across North Dakota which happens to be as flat as any state I've ever seen. It doesn't matter which direction you're traveling in across North Dakota....you will ALWAYS have a 25 mph headwind.

My Dad says that North Dakota is the state where you can see the farthest and see the least of any state in the nation! :lol:

Stuff 08-19-2010 12:16 PM

Re: What kind of milleage do you get?
 
the joke for ND and SASK is that its so flat you can see either your dog running away or your wife leaving you for 6 days :D

but yeah. always seem to get a head wind in ND

produster 12-10-2010 12:27 PM

Re: What kind of milleage do you get?
 
I have a 86 flatnose blue bird. Bought it in Alabama in March. Got 10.5mpg rolling about 65mph. I use it to haul my drag car around and it is getting about 9.5 but that is because 70% of my trip to the local track is city driving...

I think it has a 5:13ish gear in it. I would like at some point to go to a 4:10 or 4:30 gear, a little more speed and better milage, I hope.

syke 04-10-2011 10:01 PM

Re: What kind of milleage do you get?
 
We just bought a 92 Blue Bird All American RE 8.3 cummins / allison 643 with 4.78 gears.

Picked it up in Northern Oregon, drove 95% secondary highways back to Northern Arizona.

Average 55 mph and 11 mpg, bus was empty.

I'm hoping 9-10 mpg once the conversion is done.

Maybe changing the gearing to 4.11 would help a bit.

robackyap 05-03-2011 05:30 AM

Re: What kind of milleage do you get?
 
Average 55 mph and 11 mpg

kotflb 05-29-2011 12:14 AM

Re: What kind of milleage do you get?
 
Just bought myself a second bus, its an '82 International 71 passenger BB with air brakes. Picked it up in Denver and drove it 720 miles home. It has a Dt466 engine with a Mt643 Allison and 4.78 rear axle ratio. The engine, transmission and rear axle were all rebuilt five years ago and has less than 50k miles since the rebuild. Cruised home between 60 and 65 mph and got 9.5 miles per gallon.

I bought it because it has a eddy current drive shaft retarder on it that was installed new 14k miles ago. I've always wanted one of those. Just the retarder cost between 7k and $10k itself, and I got the the whole bus for 2300. Love it.

Accordion 01-17-2012 09:37 AM

Re: What kind of milleage do you get?
 
I have a flat nose front engine Blue Bird. It has the 1160 CAT diesel (precursor to the 3208). The tag on my dashboard says 6.8 rear end. I think that the rear end may have been changed before I bought it, because I drove it pedal to the metal on my trip from Nashville to Springfield Mo. and the bus went 67 MPH.

I think there must be a governor on the motor. I use a GPS to tell me the speed. On my trip from Nashville I got 8 MPG. My bus weighs 22,000 lbs.

Recently I went on a 130 mile trip, and it was weird that I was able to go 69 to 72 MPH on that trip. I figure that I am still getting 8 MPG.

I do not have a tachometer.

Can anyone tell me why I can go so fast without blowing up the motor? If indeed the rear end is 6.8, I would think that the governed motor would not let the bus go that fast.

usmcbay 03-19-2012 10:37 PM

Re: What kind of milleage do you get?
 
Hello... I'm a new guy here. My folks just bought a 1995 Thomas Rear Engine 5.9 Cummins Diesel. We're going to work on it together and I'll buy it from them in June.

I'm an ole Cummins Diesel Engine guy and I LOVE the B Series Cummins Engine. Here's what I haven't seen on this Website... Cummins Engine Mods that are Cheap!!! If you have a Grinder I can get you up to around 12% additional mileage AND much more power. In Gassers HP = fuel... in the B Series Cummins there is a long way to the sweet spot before you start losing mileage. That being said Google search "Grinding Cummins Fuel Plate to # 100" and Gain 50hp on Avg with additional Torque and no damaging changes to the Engines life.

Here are a couple of good links!

https://www.dieselbombers.com/5-9l-12v-b ... nding.html

https://www.dieselbombers.com/12-valve-2 ... f=esp-link

roach711 07-02-2012 03:45 PM

Re: What kind of milleage do you get?
 
My bus is a 24' fiberglass body shuttle bus with a 7.3l Powerstroke, 4 speed overdrive automatic trans and 4.11 rear end gears. I get right around 13 MPG at highway speeds.

TourTech 11-28-2012 01:21 AM

Re: What kind of milleage do you get?
 
I don't really know what a mile or a gallon is, but I want to get 5Km/Litre of diesel out of my 72 passenger 444E - it looks to be about 12Miles per Gallon.

wdbowers 12-10-2012 08:37 PM

Re: What kind of milleage do you get?
 
8-10 Diesel fuel

Henukaw 01-02-2013 03:17 AM

Re: What kind of milleage do you get?
 
Recently drove 1,100 miles in our 366 gasser and averaged between 5-7 MPH between fill-ups.

mightybus 01-02-2013 04:06 AM

Re: What kind of milleage do you get?
 
When you consider diesel costs roughly 20% more than gas, and if you lose your turbo or pump, plus the additional maintenance costs with diesel, keeping in mind a lot of skoolies stay parked, sometimes I wonder if a gasser, tweeked with fuel injection and computer aided economy, coupled with a manual transmission, while savoring the lowered vibration and noise, might be a viable alternative to diesel. How cool would a Ford v10 be in a 40' flat front bus?

crazycal 01-02-2013 05:43 PM

Re: What kind of milleage do you get?
 
Quote:

Originally Posted by Henukaw
Recently drove 1,100 miles in our 366 gasser and averaged between 5-7 MPH between fill-ups.


Ouch.

travelinwithus 01-02-2013 08:38 PM

Re: What kind of milleage do you get?
 
Quote:

Originally Posted by mightybus
When you consider diesel costs roughly 20% more than gas, and if you lose your turbo or pump, plus the additional maintenance costs with diesel, keeping in mind a lot of skoolies stay parked, sometimes I wonder if a gasser, tweeked with fuel injection and computer aided economy, coupled with a manual transmission, while savoring the lowered vibration and noise, might be a viable alternative to diesel. How cool would a Ford v10 be in a 40' flat front bus?

I have a V10 in my 2000 Excursion. Sadly, my bus gets about the same fuel mileage.

I averaged about 11 with Farold. - 18,000 pounds

I average about 12 with the Excursion - 7,300 pounds

I have no idea what the ratio for fuel mileage to weight might be but let's say I got 7 mpg with a V10 in Farold, which I bet is an extremely high guess.

Last trip we drove 4248 miles divided by 11 mpg = 368 gallons * (actual) average fuel cost $3.88 per gallon for Diesel = $1427.84

Now with a V10 @ 7mpg - 4248 miles divided by 7 mpg = 607 gallons * average fuel cost $3.29 (this was the lowest price I saw the entire trip) per gallon for gas = $1997.03

The V10 moves the Excursion pretty good but I think it would be pretty doggy in a bus. Anyway, just my 2 cents.

Accordion 01-03-2013 06:41 PM

Re: What kind of milleage do you get?
 
Diesel used to be much less expensive than gasoline. Now it is more expensive. What's up with that?

My bus gets a whopping 8 miles a gallon. it weighs 22,000 lbs. It has a BIG motor. It is a CAT 1160 which is the precursor to the 3208.

I drive it pedal to the metal and it goes 70mph.

Shawn C 01-12-2013 08:41 PM

Re: What kind of milleage do you get?
 
post removed

Accordion 01-15-2013 11:57 PM

Re: What kind of milleage do you get?
 
Quote:

Originally Posted by Shawn C
I have a 366 gasser and a 5 on the floor manual tranny but, I just bought it not too long ago so haven't had the chance to take it on a trip yet.
I would like to mention that wind drag is a cubic function so if you double your speed you will need 8 (2x2x2) times the power to overcome wind resistance.
quote from wikipedia " the power needed to push an object through a fluid increases as the cube of the velocity" here's the link.....
https://en.wikipedia.org/wiki/Drag_(physics)
My approach will be to go as slow as possible without tying up traffic. I'm eager to see what my milage will be.

-Shawn

I tried going slower (60mph) on a trip last summer, but my bus did not do very well going up hills at that speed. It would slow down tremendously. I think the "sweet spot" is pedal to the metal which is a little over 70mph.

Shawn C 01-16-2013 09:34 AM

Re: What kind of milleage do you get?
 
Post removed

Kathy WI 04-06-2013 10:20 PM

Re: What kind of milleage do you get?
 
I get about 8 mph, diesel short bus. My tank only holds about 20 gallons so I start getting nervous if I've been driving a couple hours and don't see a gas station. I don't know if I could ever drive across North Dakota or somewhere like that. So some people add extra gas tanks or replace their gas tanks with bigger ones?

D&ACaple 05-05-2013 08:38 PM

Re: What kind of milleage do you get?
 
5.9 cummins turbo. allisonautomatic... at 60.... 65-70mph it gets 6.5 7mpg in the hills of missouri

gmarvel 05-17-2014 12:16 AM

Re: What kind of milleage do you get?
 
My 1988 Crown transit had 78 passenger capacity. It has a Detroit Diesel 6-71 turbo with Allison auto and a 112 gallon fuel tank. It got almost 12 mpg bringing it from San Diego to San Francisco Bay Area. About 500 miles.

Scooternj 05-17-2014 08:15 AM

Re: What kind of milleage do you get?
 
I got about 10 coming back from Maine to NJ.

bamper 05-17-2014 03:19 PM

Re: What kind of milleage do you get?
 
1977 Chevy C/60, 4plus 350 gasser. We got around 6 on a 200 mile trip on mostly level ground.

On another note, my 98' 5.9l Grand Cherokee gets around 11 mpg average on 92 octane. 6 doesn't seem too bad for an 11,000lb vehicle when my SUV gets less than twice that and only weighs 4,200lbs.

wmkbailey 05-21-2014 03:33 PM

Re: What kind of milleage do you get?
 
In my 1999 Thomas RE 72 pass bus. I averaged 10.5 in my 1800 mile round trip to Indiana. I'm very happy with these numbers.

Tbart 09-30-2014 11:40 PM

Re: What kind of milleage do you get?
 
My 1951 IHC / Wayne gets 8/10 mpg depending on conditions. SD240 gas. 4sp 6.16 gears. Soon I will have 5.70 gears and I will report. I once had one of those bug deflectors I put on a 78 Impala. It improved my highway milage by 3mpg. And it kept my windshield clean. I'm going to put one on my bus and test the results. They send the airstream over the top instead of slamming into the windshield. An air dam on the front bumper may work as well. It would have to be adjustable but keeping air out from under the vehicle is important. Lots of drag under a bus.

stefan 04-12-2015 11:30 PM

Hey guys, I'm new to the forum and to bus conversion. I am currently looking at buying a really clean 1998 Thomas short bus, 18 seater at 9,500lbs weight. It has a 6.5 Chevy turbo Diesel engine, and a 35 gallon fuel tank. With those numbers, what do you think would be reasonable numbers to expect for mpg? Thanks much!

Cheers,
Stefan

As my girlfriend and I work on the bus, I'm sure I will be scouring these forums (as I already have been!) and asking more questions!

charles_m 04-13-2015 12:26 AM

If the miles are low, that could be a great buy. Lots of people (myself included) have negative thoughts on that engine though. Id guess 13-15

WLDNWALT 08-29-2015 11:03 PM

My 1992 TC2000 5.9 cummins, Allison automatic gets around 9 mpg.
That is wide open running 62mph.
Runs great but it is SLOW!

jazty 08-30-2015 04:37 PM

Ok, I've got to say something about this since this thread keeps popping up (a good thing)... Can we please fix the typo in the title?! It keeps poking at my OCD.

crazycal 08-30-2015 06:08 PM

Quote:

Originally Posted by jazty (Post 122265)
Ok, I've got to say something about this since this thread keeps popping up (a good thing)... Can we please fix the typo in the title?! It keeps poking at my OCD.


Pikky, pikky. How about now.:facepalm:

jazty 08-30-2015 07:40 PM

Thanks crazycal!

ArmyChap 08-30-2015 10:28 PM

I sold a motorhome to a guy once. He asked me about fuel economy. I replied, "Why would you even ask that question?" When I'm out camping I'm committed to the RV lifestyle... Everything else is secondary. If I were concerned about fuel economy then I'd be researching how to convert a Prius into a camper!

dond 08-30-2015 10:45 PM

Lousy mileage for a vehicle, great mileage for a house!

Our house gets 11.5 running up and down 3200ft to 7500ft.

Will be doing some flatland soon, will post MPG.

crazycal 08-30-2015 11:20 PM

Quote:

Originally Posted by jazty (Post 122282)
Thanks crazycal!

So what? The OCD is going to let the pikky go?

dond 08-31-2015 11:02 AM

If someone is REALLY OCD, it's CDO. :whistling:

porkchopsandwiches 09-07-2015 06:43 PM

On our 9,000 mile trip this summer, the trip average in my 1999 Thomas bus with 3126b CAT (electronic engine) and 6-speed Allison MD3060 (6th gear enabled), cruising at 65 with foot buried most of the trip, weighing in at about 24,500 lbs, we averaged 8.2 mpg. Best was 9.3 going SE through Yellowstone on 287, worst was on PCH (route 1) at about 6.5 (constant hills and stop-and-go letting people pass).

Edit: 4.62 rear gears turning ~2,100 rpm at 65.


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