BinderPlanet.com

Welcome to BinderPlanet.com the World's Premier IH Website.

Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!

How did you do it?? MPG bragging rights!!

christopher

Farmall Cub
well i'm getting 9 mpg, 304, 4.09 gears, close ratio t-18, 36 super swampers......how i did it, d&c lift(great), iroks and a lead foot, pretty good if you ask me.........let the greenies worry about saving the planet i just want to wheel!!!!!!!!!!!!!!!!!!!!!!!!!!!
 

Aaron Snare

Farmall Cub
I have a 72 SII with a 304 2300 carb, close ratio 4 speed, 31 tires, 3.73 gears 4wd and I get a solid 18mpg on the highway at 70mph, about 14 in town.
 

rbelflower

Farmall Cub
I have a 76 Scout II, 345, Auto, 30" tires, 3.54 gears and get about 11-12 going back and forth from work. I have to drive up and down a large hill.. about 1500' difference in altitude in a very short distance.. maybe 5-10 miles OUCH!!
Without the hill I get an average of 14MPG... when I had my Rubicon, I got an average of 15MPG. The best I ever got in my J**p, was 19MPG, doing 55MPH with myself and 1 suitcase and a tailwind.
 

Chrispucci

High Wheeler
14.5 mpg.

Scout II, 304, TBI Fuel injection, runs like a champ, T-19, 36" IROK's, Chevy Full Width axles, lots of trail mods, Cruising at 62 mph on the freeway full of camping camping gear.

Hand calculated mileage over 400 miles.
 

larboc

Binder Driver
19.6 MPG odo corrected

averaging 55 through a few long hills. tuned GM TBI with knock

31" Tires, 3.31 gears, t19 wide, good shape stock 345. worn out front end.

oh, and it hauls.
 

StefanM

Farmall Cub
'72 with 31", 3.31, 4 speed, 1 barrel Holley, and 258 engine. I was getting 14-15 mpg with a bad vacuum advance. Put in a electronic Motorcraft dizzy from a Jeep and did the Nutter bypass. It's running super smooth now and getting just over 19 mpg at 55-60 mph.

I got a few other ideas to try and hope to raise that number a little.4
 

Scott Sinner

High Wheeler
I regularly tick off 6-9 mpg...

1970 800, 345 FI with a stock GM TBI chip. 727 SII auto 3.73 gears, 35 12.5 x 15 Swampers, no speedo correction (40mph on speedo = 48 mph on GPS). With speedo correction, I must be around 7.2 - 9.9 mpg.:rockon:

But its still too much fun, and not my Daily Driver...
 

tntmo

Farmall Cub
Some people get some pretty decent figures here, better than I expected.

My 1970 800A with 232 AMC "Thriftmaster" gets about 12mpg.

The 1968 800 with 455 Oldsmobile, TH400 and 35's gets I don't care to check. I just put gas in it when it needs it, it's for fun only.
 

steve graham

Farmall Cub
1980 ScoutII Diesel,
Replaced the SD33T with a Cummins 4BT
Replaced the T19 With a NV4500
Kept the 3.73 gears,
Upped the tire size to 33/10.50/15

23-28 mpg or $.16-$.13 per mile for fuel. $3.88 gal today.
I have had as high as 35 mpg if I keep is below 50 mph.
 

bmax65

Farmall Cub
1968 1100 "Barn Door" 4x4 Travelall
BG 241
T-98, NP 202, 4.09 Dana 44's F/R
31x10.50s

6-8mpg in town, 10-ish on freeway at 55mph 'indicated' top speed...while driving it like a stereotypical granny in the slow lane...downhill. OPEC loves my truck!

Thirstiest engine I've ever owned. But with some time, money, and attention to math (gear ratios/rpm/tire sizing) hope to improve this situation. Might even contemplate a diesel swap.

Despite its' being a chronic gasoholic- looking at it reminds me of my dad, being a kid (with him in the IH showroom), and of happier times. Hard to put a price on that.
 

CareyWeber

Diesel Herder / Moderator
Staff member
Moderator
Over the course of one year I carefully checked my MPG. When I avg'd the year out I threw out the highest and the lowest and got an average of 24 MPG over a year. My highest was 28 MPG and the lowest was 19 MPG. See my sig for rig details, but think diesel.
 

StefanM

Farmall Cub
Just updating:

Drove 476 miles over the past 5 days. Averaged 19.58 mpg. Mostly highway with a few small towns each day(4-5 stop lights/signs per town).

'72 Scout 258 engine, 4 speed, 3.31, and 31"
 

Dan Phariss

High Wheeler
Thanks for posting up guys!!! Any FI 345 or 392 out there with anything MPG.. I may stay 345 or back to 400 Pontiac that motor was a H*** of a truck motor and I have a few more after market options.. But I don't have one anymore and the cost of motor bell and tranny to say nothing of more work to install I may stay 345.. Since I'm a engine machinist the work would be the same on any motor... It is of my Basic opinion that a major MPG build vs performance is cam selection and yes I'm shooting for MPG I would love to stay IH This motor will end up in my other post 120 to 1200 to 1300 ---- all B series it is coming along as well as wallet will allow 120 is down to frame- running gear 4 in lift 1/2 way done aprox 2 year project KEEP your post coming thanks again

Hell of a truck motor?
Did you put it in an actual truck?
Sorry but I remember my uncle putting a Ponitac v-8 into a F-6 Ford about 1963-64 to replace the flathead. He ran it for awhile but put the flathead back in since it outperformed the Pontiac engine on 1/2 or less HP in that application. The car motor had no low end torque.

Dan
 

70binderPA

Binder Driver
i know it isn't an International, but my '05 subaru wrx, stock from factory, never got above 24.3mpg regardless of what i did. turbo-back 3" exhaust, a cone style air filter to replace the stock fiasco setup, and a retune of the computer and my best to date is 32.2mpg @ 70mph, windows somewhat down. i'd say that's a hell of an increase, not bad for a high 13 second car!
 

steve graham

Farmall Cub
Re: How did you do it?? MPG bragging rights!! UPDATE

1980 ScoutII Diesel,
Replaced the SD33T with a Cummins 4BT
Replaced the T19 With a NV4500
Kept the 3.73 gears,
Upped the tire size to 33/10.50/15

Camping trip up to the Chirichaua mountains, Scout was loaded somewhat, did not spare the throttle. 70-75 mph, averaged 20.78 mpg for the trip.
 
Top