To the guy with the magical 30+MPG Excursion

[J.D.]

I know somebody out there a while back said they had a 7.3 Excursion getting something like 30+ MPG. I need your help. I have a 2000 F250, ext cab, 4wd, 6 speed. Cold air intake, 5'' exhaust, Banks 6-gun tuner. I cannot break 20MPG, highest to date is 19.1.....I've tried everything. What did you have done to yours, to take a truck that weighs 1500+ more lbs than mine and get 10+more MPG?

[brapp]

i have a 03 6.0 crew cab 4x4 long bed gettign in the high 20's but have recorded as high as 31 on long trips

[SYKO]

wtf man My 99 f-250 with the 7.3 was in town over 20 and triped out close to 30, but it was also a 2wd day cab longbed

[Thorpe]

Gear ratio different?

[LonesomeTriZ]

Man even my older 7.3 with those huge and heavy 22.5 rims gets 20. Something is wrong some where.

[deathman53]

I have a 97 7.3 350 dually it has real low gearing(4:10), I get 14-18mpg. Pulling my 4 ton trailer, 10-12 mpg. I'm told when the inner-cooler and different type turbo was added power and fuel mileage when way up. I wish mine got that good of gas mileage!!! 20-30 mpg, I would drive that more often, my 4 cylinder pickup only gets 23 mpg.

[smokinwrench]

My parents have a 01 f250 7.3 auto 4x4 crew cab, it has some sort of chip and it gets 18-19.

Guy I work with says his with some sort of chip gets about 30 all the time, I guess the programmer show mpg. I asked if he has ever checked it with miles compared to gallons and he said he hadn't, so I have my doubts. I will ask him what the chip is tomorrow.

[300rman]

that'd be me.

K+N intake,
4.5 inch straightpipe exhaust (not banks)
Evolution Programmer

All i know of for sure, No clue what else dad has toyed with. lots of banks parts have gone on and been taken off, mainly due to the truck not coming up to temp in the winter, so i couldnt tell you what is still on there and what isnt.

key is driving style. drive nice, and keep it under 2 grand down the highway.

[deathman53]

keeping it under 2g on highway isn't in the cards for me, I'm humming at 2g's at 50, 55 is just over 2g's and 65+ is close to 2 1/2g's, the fastest I went is 80 and it was screaming, it had to be 2 3/4 or closer to 3g's. I read that different rear end's were available, that and tire size will make a big dfference, along with mine is a 3 speed w/ overdrive. Didn't some have 4 and 5 speeds w/ overdrive?

[4cfed]

gear ratios will make a huge diff!! and driving style... taken it easy gettin up to speed, and easyin up to speed aproching a hill, and coasting down the hill...

[300rman]

keeping it under 2g on highway isn't in the cards for me, I'm humming at 2g's at 50, 55 is just over 2g's and 65+ is close to 2 1/2g's, the fastest I went is 80 and it was screaming, it had to be 2 3/4 or closer to 3g's. I read that different rear end's were available, that and tire size will make a big dfference, along with mine is a 3 speed w/ overdrive. Didn't some have 4 and 5 speeds w/ overdrive?

just under 2g for our truck and its rollin about 78MPH on the speedo. the tires are bigger, and the speedo isnt compensated, so its probably closer to 82.

[J.D.]

Just for a little extra info, I have 3.73 gears, and 285/75r16 tires....the tires themselves may be a little taller than stock but with the 16x10 wheels they even out, per GPS my speedo/odo are within 1mph/ and very close on mileage.

I still just can't see y'alls claims. You think mine is bad, my buddy has a 99 350 crewcab longbed, 6'' lift, 37x13.50x17's, 6 speed w/3.73s, same mods as mine....he gets 11-14 with his. I actually found with mine it's better to accel moderately, lugging it alot seemed to take more fuel and just raise EGT's needlessly. This particular forum here is the only one where people are making such ridiculous claims. I've been all over Powerstroke forums and have never heard such crazy mileage claims.

Lonesome, probably a good explanation for yours is you have an OBS if I remember right, between a 15 degree HPOP and single-shot injectors they are better for overall fuel economy. I'll trade you my split-shot injectors for your singles if you want :)

I'm looking into getting either a DP Tuner or Tony wildman chip sometime in the future and get rid of this Banks trash. They both have "economy" tunes, maybe once I get them I'll be able to report back with something in the 20's...

What gear ratio do you have in that thing 300r? If I'm not mistaken 3.73 was the lowest offered?? Every Superduty I've been in(with 3.73) is 2,000RPM=70MPH. Maybe you have 3.55's??

[harryredtrike]

I have a 97 7.3 350 dually it has real low gearing(4:10), I get 14-18mpg. Pulling my 4 ton trailer, 10-12 mpg. I'm told when the inner-cooler and different type turbo was added power and fuel mileage when way up. I wish mine got that good of gas mileage!!! 20-30 mpg, I would drive that more often, my 4 cylinder pickup only gets 23 mpg.

thats what my chevy silverado gets exactly.has tow package with a low gear,not much you can do with that.i have the 5.7 vortec extended cab.

[smokinwrench]

He says its a hyper tech power programmer 3 he says its an old one. He swears his mileage is that good. With a Bully dog monitoring system.

[The Goat]

I propose that you go onto the websites for the 7.3... Most people don't see mileage over 22 and that's with pizza cutter tires.

this magical high figures are just that....magical.

Only reason I'm not rolling in a 7.3.


With the intercooler off of a 6.0 and a 80hp tune most see high teens.

[4cfed]

shoulda bought a cummins lol!! problem solved

[300rman]

I propose that you go onto the websites for the 7.3... Most people don't see mileage over 22 and that's with pizza cutter tires.

this magical high figures are just that....magical.

Only reason I'm not rolling in a 7.3.


With the intercooler off of a 6.0 and a 80hp tune most see high teens.

the 6.0 sucks fuel, and they dont hold up. the heads crack up. theres a reason Navstar isnt making ford;s diesels anymore......

believe what you want, after riding in this thing for a few years now, i will be buying something very similar in the near future, as soon as i start working full time.




What gear ratio do you have in that thing 300r? If I'm not mistaken 3.73 was the lowest offered?? Every Superduty I've been in(with 3.73) is 2,000RPM=70MPH. Maybe you have 3.55's??

dunno man, never looked into it.

[racerxxx]

My 01 Dodge Ram Cummins 24V gets 16 MPG no matter how I slice it. Windows up, windows down , A/C On , A/C Off, Towing my boat, or not towing my boat, Around town or on the highway. I have a heavy right foot on the skinny pedal. Truck is a bone stock 2500, Extended cab, long bed, 4.10 gears, 285 Terra Grappler tires, with 206,XXX miles on the ticker. Oh yeah no tail pipe is the only mod on the truck, due to rusting off!:lol: And I'm thrilled with 16 MPG.

Good luck in you mileage endeavors!

[4cfed]

My 01 Dodge Ram Cummins 24V gets 16 MPG no matter how I slice it. Windows up, windows down , A/C On , A/C Off, Towing my boat, or not towing my boat, Around town or on the highway. I have a heavy right foot on the skinny pedal. Truck is a bone stock 2500, Extended cab, long bed, 4.10 gears, 285 Terra Grappler tires, with 206,XXX miles on the ticker. Oh yeah no tail pipe is the only mod on the truck, due to rusting off!:lol: And I'm thrilled with 16 MPG.

Good luck in you mileage endeavors!

exactly... my point proven!! loaded or unloaded the cummins dont drop mileage!!!

( and no im not being single sided lol i own a ford crown vic and bought my wife a grand am)

[J.D.]

Put 10K behind that Cummins, you will see a mileage drop. Trust me ;)

One thing I definately like, I've heard several stories of the 7.3 making it 800K+ mies, haven't heard of a Cummins making it that far yet. Not dissing the Cummins, I like them don't get me wrong. I personally know one guy that has just under 500K on his 03 7.3 and it's still running great.

Goat, I'm getting high teens w/o the 6.0 intercooler and less than 80 horse tune. I run the 6-gun on level 2 most of the time....I'm trying a couple of tanks on stock level to see what I get.

[J.D.]

My 01 Dodge Ram Cummins 24V gets 16 MPG no matter how I slice it. Windows up, windows down , A/C On , A/C Off, Towing my boat, or not towing my boat, Around town or on the highway. I have a heavy right foot on the skinny pedal. Truck is a bone stock 2500, Extended cab, long bed, 4.10 gears, 285 Terra Grappler tires, with 206,XXX miles on the ticker. Oh yeah no tail pipe is the only mod on the truck, due to rusting off!:lol: And I'm thrilled with 16 MPG.

Good luck in you mileage endeavors!

Go figure, a Dodge truck rusting away LOL.

[racerxxx]

Go figure, a Dodge truck rusting away LOL.

Yep on the rust, my truck is Silver, and almost every Dodge Ram I see in my area that is Silver or is Two Tone with the lower half being silver has lower door rot (mine included). The rest of it is great, no rot just a few bruises. With 206K on the clock, I wouldn't put 10K into it for performance, I'd get better results in flushing it down the bowl:D About the only upgrade I'll do is the exhaust and that won't be done until the rest of the exhaust falls off! As for the Ford, Dodge, Chevy. I love the Dodge, Buddy of mine has the Duramax and loves it, A guy I know had 2 Fords to tow his race cars and returned(yes returned) them to the dealer-- he owned them for 2 months and each of them were in the shop with in the first 2 weeks-- one of them for 3 1/2 weeks. I'm not knocking any of them, I love to have any one of them sometimes you get "the" good one and sometimes you don't.

[300rman]

I wouldn't put 10K into it for performance, I'd get .

he was talking about putting 10K pounds behind the truck and towing it and he promises you will see a mileage drop. ;)

[J.D.]

Uhhh yeah, exactly thanks for clarifying that for me 300rman...

As far as your buddies returning two Fords...they were probably 6.0/6.4 trash I'm assuming. They've all got good and bad really. Dodge has good engine, GM has good trans(allthough the 4r100/5r100 isn't too bad either...), and Ford has the good base truck.

[85Tecate]

Uhhh yeah, exactly thanks for clarifying that for me 300rman...

As far as your buddies returning two Fords...they were probably 6.0/6.4 trash I'm assuming. They've all got good and bad really. Dodge has good engine, GM has good trans(allthough the 4r100/5r100 isn't too bad either...), and Ford has the good base truck.

Think you got that backwards. Dodge has the good trannys, Chevy has the good engines and ford has the body. Dodge engines blow IMO, ive blown up 2 and my magnum gives me more problems than its worth. Never had much problems with chevy engines, cant say the same about fords. IMO dodge has the best tranny ive came across although i have ripped one out before. Ive damage, blown many more ford and chevy trannys though.

[hancadam]

Dodge having good tranny's is a joke. They are notorious for transmission problems. At least when I worked at the dealership two summer's while in school, that was the main issue we had customers coming in for.

[cox]

did i read that right? 37" tires on 3.73's? what an axle breaker, hope its a pavement princess, i would snap those axles in a day of offroading..

[MTS]

Little off topic here, but whats with the ford 6.0 being junk...? The old mans 07 1 ton has the 6.0 with 95 thousand km's and bout 3600 hours, With a crane, tool box, flat deck ect, set up for work. The only problem he's had so far is the Egr valve crapping out...seems to get decent mileage not sure on the exact numbers.....anyone?

[code200k]

Dodge having good tranny's is a joke. They are notorious for transmission problems. At least when I worked at the dealership two summer's while in school, that was the main issue we had customers coming in for.

x2 for there gas jobs that is..also dodge trucks doors rust out i havent seen a dodge truck w/o rust there ever and i heard the 6.0s leak oil bad after xxxxxx many miles...the 7.3 s will go for ever just like the cummings..and to who ever said their cummings gets 16 mpgs all day long that funny cuz my dads ram 1500 v6 gets 13mpg

[racerxxx]

he was talking about putting 10K pounds behind the truck and towing it and he promises you will see a mileage drop. ;)

Missed the one word "behind" sorry about that, damn beers got in the way.

[racerxxx]

x2 for there gas jobs that is..also dodge trucks doors rust out i havent seen a dodge truck w/o rust there ever and i heard the 6.0s leak oil bad after xxxxxx many miles...the 7.3 s will go for ever just like the cummings..and to who ever said their cummings gets 16 mpgs all day long that funny cuz my dads ram 1500 v6 gets 13mpg

Your pop's needs to upgrade, my old mans 06 Ram quad cab with 5.7 Hemi and MDS clicks off at almost 20 MPG down the highway @ around 70 mph

[brapp]

get rid of the egr system and cooler and a 4inch down pipe and arp head studs and eliminate the restrictive bends in the 6.0 fuel system and you can make more power and awesome milage for a 4x4 crew cab with 3;73 gears and 285/75r 16 bfg all terains i am getting verry good mlilage aprox 960 per tank with off road and 850isjh with on road diesel and its a 32 gallon tank.

[MagicJames]

Quick question off topic same subject;
I'm looking at getting a 7.3 powerstroke, 99-03 twin turbo, is there anything i should be on the look out for? Any bad indicators?

Also, what is the difference between on road and off road diesel?

[deathman53]

the difference between on and off road diesel is mostly taxes being payed on it. Since no taxes payed its dyed red to make it different. Some say its has higher ppm of sulfur. The only twin turbo fords were 06+, 7.3's were a single turbo. I would check the waste gate on the turbo for any leakage, that indicates it needs to be rebuild or new, the fuel filter body for leaking, if the water pump housing leaks and output of alternator. I had all of those go bad on mine, parking brake cables freeze, front caliper line collapse and caliper seize. Also check the radiator hoses for any spots where they rub and are wearing thin, I also had this happen to mine.

[The Goat]

In the words of my buddy who's a diesel mechanic...

"dodge's have the best transmissions out there, very easily rebuildable...."

I typically just stare dumbfounded at that point.

And I will believe what I want on the mileage... fill until the nozzle clicks at a pump, drive a distance, drive back to that same pump and fill until it clicks. then calc your mileage. You won't see the mileage you're claiming, I'll bet my left nut on that.


Not to bust balls, but that's the reason you don't have these outrageous mileage claims on the 7.3 forums...whenever someone comes in and starts saying 30 mpg they get laughed out of there. On here...we gots to be all friendly and nice.

bleh...

[300rman]

Little off topic here, but whats with the ford 6.0 being junk...? The old mans 07 1 ton has the 6.0 with 95 thousand km's and bout 3600 hours, With a crane, tool box, flat deck ect, set up for work. The only problem he's had so far is the Egr valve crapping out...seems to get decent mileage not sure on the exact numbers.....anyone?


the 6.0's and the 6.4's are junk. i know for a fact working on the 6.0 is a PAIN in the arse. Ford bought back tons of them.

theres a reason the 6.0 and the 6.4 were so short-lived and that Navistar isnt making their motors anymore...

http://news.pickuptrucks.com/2009/01/ford-and-navistar-settle-diesel-engine-dispute.html


just poke around on google, you will see exactly what i mean.....

[J.D.]

Quick question off topic same subject;
I'm looking at getting a 7.3 powerstroke, 99-03 twin turbo, is there anything i should be on the look out for? Any bad indicators?

Also, what is the difference between on road and off road diesel?

Stay away from early 1999. Go with a late (1999.5) or later, forget the exact build date you need to get that though. Other than that, make sure you have a chance to start it cold. See how it runs off first start up, feel for shaking/running rough, if it's real cold out some white smoke for a period of time depending on temp is ok...mine will white smoke for about 30 seconds in 30 degree weather, watch the exhaust for excessive smoke. When you drive it, take it easy and let it warm up a bit...at least to operate temp, try and find you a steep hill and mat the accelerator. You want to feel for any shuddering/missing. Injectors, glow plug relays, and glow plugs are somewhat common failure items mostly due to lack of maintenance. You can buy a set of injectors, glow plugs, and UVC's for about 1,000$ from Pensacola Diesel. If you bring it to a shop to have it installed look at app. 600-1000 for labor.

http://www.youtube.com/user/powerstrokehelp#p/u/67/UwKx7oXaMNA

There you go. Lots of good informational videos there, I really like the one about "Spot" the shop truck, 798,000 miles on the engine a rod failed and destroyed the block. He got the truck with 700K on it then proceded to beat the trailprotrailprotrailprotrailpro out of it, nitrous, dyno tests, hauling stuff, etc etc.

[The Goat]

check diesel specialists here in louisiana...they do things right.

[MagicJames]

J.D. That youtube thing is amazing....
I've watched 2 hours of video already and I am just wow-ed...

Makes me want to run out and buy a Powerstroke .... NOW

[MagicJames]

Maybe i should just look at a powerstroke forum as opposed to asking questions here....

lol

why cant you guys have all the answers???

[Jeepermc]

Maybe i should just look at a powerstroke forum as opposed to asking questions here....

lol

why cant you guys have all the answers???


http://www.forddieselpower.com/forums/main_index.php
http://www.powerstrokenation.com/

and my personal favorite- http://nwforddiesels.com/cgi-bin/yabb2/YaBB.pl

Oh...and if you do anything with Pensacola diesel...plan on doing it more than once...
I've stayed outta this thread cause I'm no newbie anymore to powerstroke's and know how the forums can be.... I'm amazed at the misinformation though... All I will say is do your own research and keep an open mind. Only you know what you want and what you can afford.

[J.D.]

Are you saying misinformation in this thread??? If I'm wrong about anything I've said, please feel free to correct me. I'm still trying to learn more about these myself. I personally like superdutydiesel.com as far as a forum goes. And as far as Pensacola Diesel, I never said they were good haha...they just have a whole setup cheap. What's your experience with them?? I know a guy that's had some trouble with them too...but a grand for a complete injector job is a cheap get-me-by.

[JohnR.]

Are you guys that are claiming 25-30mpg actually calculating it the old fashioned way or are you relying on what the computer is displaying inside the truck? Those things are notoriously inaccurate and when you do some mods to the truck it makes them even more inaccurate. I could maybe believe 25 with a 2wd standard cab that was running flat highway and running pretty much as light as possible (no gear, cargo, toolbox, etc...) but 30 from a 4x4 ain't happening, no how, no way. I've been playing with diesels for the better part of ten years and there is something being miscalculated there.

John

[smokinwrench]

Are you guys that are claiming 25-30mpg actually calculating it the old fashioned way I've been playing with diesels for the better part of ten years and there is something being miscalculated there.

John

:beer :beer

[The Goat]

Are you guys that are claiming 25-30mpg actually calculating it the old fashioned way or are you relying on what the computer is displaying inside the truck? Those things are notoriously inaccurate and when you do some mods to the truck it makes them even more inaccurate. I could maybe believe 25 with a 2wd standard cab that was running flat highway and running pretty much as light as possible (no gear, cargo, toolbox, etc...) but 30 from a 4x4 ain't happening, no how, no way. I've been playing with diesels for the better part of ten years and there is something being miscalculated there.

John

thank you....thank you.

I know someone who has a 350 with a 80hp tune, 6.0 intercooler and new injectors, and shifting at 1100 rpm...yeah 1100...he can't break 23 mpg. His tires are also like 205 or so wide.

I've thought that with new gearing you could get into the high twenties...but I don't know. Seems like if you could keep those rpms low enough you could do well.

[UlsterATCFan]

It never fails to amaze me how big the engines are over there in the US - in the UK (and most of Europe) 2 litres is considered more than enough and most cars are under this. I have a 2 litre turbodiesel 5 door hatchback car (a Vauxhall Vectra - Vauxhall are owned by GM) which does 50 mpg - some of the newer smaller diesels will do over 70 mpg, do you guys think things will start to go the way of the smaller turbodiesel engine in the US? There is only so much petroleum in the world and believe me I agree that theres nothing like the roar of a big V8 but I don't think you guys will be able to burn it up at these rates for much longer especially since most of it comes from our 'friends' in the Middle East

[The Goat]

look into your petro production...it ain't ancient plant and animal matter.

natural biproduct of our planet.

also...to speed things along, they are engineering algae now that produces refined oil. very cool stuff.

ps...I'D KILL FOR A SMALL DIESEL MOTOR IN MY CAR!

[300rman]

there is something being miscalculated there.

John

kind of hard to screw that one up.......miles driven divided by gallons filled........




as for the small euro engines, yeah those are great for small cars, they wouldnt be worth a crap in a big work truck.

and cars with motors like that arent really available over here. they talk up those crap-tastic PRIUS mobiles that only get 50 or so MPG after all these years of new technology.......VW Diesel Rabbit's were getting 45-50 YEARS ago........they have made NO advancements technologically speaking in car engines in a LONG time......

[Dammit!]

The tree huggers would probably have a heart attack if everyone were driving those little diesels. Makes me want one actually. :lol:

[The Goat]

why? emissions are better and less harmful in the longrun.... Unles the world has gone topsy turvy in the last year

[MagicJames]

GOAT, did you send my stuff?

And i agree, VW Rabbits were getting 50+ mpg over 3 decades ago, and we don't even have cars around that will get 50+ mpg anymore.

I will say that there are cars still out there, but not as common as they used to be.

[JohnR.]

kind of hard to screw that one up.......miles driven divided by gallons filled........




VW Diesel Rabbit's were getting 45-50 YEARS ago........


It sounds easy but it can still be screwed up. Kind of like saying that VW Diesel Rabbit's were made in the early 60's. Maybe its the "new" math. :D

John

[SYKO]

not to be ignorant or anything but how can you screw it up?

[smokinwrench]

It sounds easy but it can still be screwed up. Kind of like saying that VW Diesel Rabbit's were made in the early 60's. Maybe its the "new" math. :D

John


I think it was meant to say they got 45-50 MPG years ago. I drove a 1984 vw rabbit diesel, and it got 50 mpg and had 150,000 miles on it, sure wish I had it now that I drive 46 miles to work.

[JohnR.]

My bad. I misread it.

I can't see how you could screw it up, that was my point. Just like I can't see how you could get 30mpg with a truck that weighs over 6,500 lbs.

John

[smokinwrench]

I'm with you, I need to see it to believe it, not saying anyone is lying about it. I have been a diesel mechanic since 1992, I have put over 300,000 miles on 7.3 powerstrokes, probably 75,000 miles 6.0 ltr power strokes and about 50,000 on duramax, I now own a cummins. Being a diesel mechanic its my thing and I can't believe it unless I see it myself.

[JohnR.]

It's funny that you should say that because I worked with two guys for a while that had about 50 or 60 years of diesel experience between the two of them and if you asked them which truck to get they would both tell you get the Dodge because the reliability of that B engine more than makes up for any minor issues with the rest of the truck.

Threads like these usually end up as p1ssing matches and go nowhere fast. For some reason a lot of the diesel guys get off the wall with the numbers they start to throw around when it comes to fuel economy. I've got a lot of performance stuff done to my 12 valve but it still gets better fuel mileage than it did stock. I usually see 16 or 17 driving around town and 19 or 20 on the highway empty but that's cruising at 75-80mph most of the time which is well out of peak efficiency RPM range of the engine and since the truck is shaped like a brick its tough to push it through the air too. Not to mention that the mud tires' tread isn't the most conducive to big fuel mileage numbers. They did an article in one of the diesel truck mags a while back where they went nuts and even started duct taping over the holes in the dualie's wheels and driving around with the door mirrors folded in to increase fuel mileage. I think they topped out at around 25mpg. If I kept my foot out of it and kept my speed to around 60 so that the engine was running its peak torque RPM (1750) I'd probably squeeze 22 or 23 out of it. Maybe one road trip I'll actually set the cruise at 65 and do a couple hundred slow and painful miles like that. Hopefully I don't get shot at for holding up traffic though. :)

[MagicJames]

lol John. If they shoot at you, make sure you shoot back with more accuracy!

I wonder what the difference between 3/4 ton and 1 ton mileage is, because of the weight of the heavier-duty components.
Stock to stock.

[300rman]

It sounds easy but it can still be screwed up. Kind of like saying that VW Diesel Rabbit's were made in the early 60's. Maybe its the "new" math. :D

John


I think it was meant to say they got 45-50 MPG years ago. .

This.......

[300rman]

lol John. If they shoot at you, make sure you shoot back with more accuracy!

I wonder what the difference between 3/4 ton and 1 ton mileage is, because of the weight of the heavier-duty components.
Stock to stock.

the only real difference is the springs i believe

[Red Rider]

My friend showed me what he thought was cool on his '02 F-250 Powerstroke Crewcab. On the overhead console's information station, it had a readout that gave instantaneous mileage. He would romp on it & get it up to 65-70 mph, and then let it coast. Well, while it was coasting the engine was idling, but we're still cruising along at 60+ mph, so the instantaneous mileage would keep ticking upwards, and I remember seeing 40+ mpg. Did that mean he was averaging 40+ mpg? Hell no!

The more I read some of these posts in this thread, the more I believe that this type of misinformation is what got these claims started in the first place.

[300rman]

My friend showed me what he thought was cool on his '02 F-250 Powerstroke Crewcab. On the overhead console's information station, it had a readout that gave instantaneous mileage. He would romp on it & get it up to 65-70 mph, and then let it coast. Well, while it was coasting the engine was idling, but we're still cruising along at 60+ mph, so the instantaneous mileage would keep ticking upwards, and I remember seeing 40+ mpg. Did that mean he was averaging 40+ mpg? Hell no!

The more I read some of these posts in this thread, the more I believe that this type of misinformation is what got these claims started in the first place.


Believe what you want. Do I care? Heck no. All i know is that i will be the proud owner of one of these in the future because of my experiences.

[smokinwrench]

My 1 ton 4 door 4x4 dually with a 6.7 cummins is getting about the same mileage as friends of mine with idnetical power train in 3/4 ton with single wheel 4x4.

My 6.7 was horrible when I first got it but now days the mileage is coming up. If there is no wind and I'm driving nice I get 17ish, the minute the wind comes up or I get all over it the mileage goes way down. This summer we took it on vacation to the mountains up pikes peak, instate, city and it averaged 16.4 the entire trip.

[Red Rider]

Believe what you want. Do I care? Heck no. All i know is that i will be the proud owner of one of these in the future because of my experiences.Is anyone here trying to talk you out of becoming a proud owner of one of these? No, I don't think so. Just don't become a proud owner & expect to average 30+ mpg.

[The Goat]

let the kid believe what he wants.

there are ways to cheat...I've hit 420 miles on a tank in my little xb riding a 18 wheelers ass in the high 60s mph.

I got quite a bit more out of my gf's carolla. Get up to 80....and then keep just enough pressure on the pedal that it takes a few miles to fall down to 70. we broke 525 in her car doing that.

You just won't make me believe that a truck that weighs 3 times as much, has the same aerodynamic drag, and has an engine that is 5 times larger is gonna crank out the same mpg as a little 1.5L.

Drive like a grandma and get 20, and be proud of it. You're doing better than the new gas rigs.... 15mpg headed to florida unloaded in a baby v8 in a chevy...BLEH. leaves a poor taste in your mouth and a sore ass.