Allis chalmers diesels vs the rest..

Depends on the job and the weight of the tractor. All weights and load the same the 301 is hard to beat for it's day.

Well I haven't run the 301 diesel but I can tell you the d17 226 gas with just pie weights will way out work any ford or ih of the same hp rating. It will drink the gas doing it but that d17 is the hardest working tractor for its size I have ever seen. I suspect the diesel in the newer tractors are the same.
As much as I hate the gas bill for my d17 I am rebuilding the motor because it just works too hard not to.

Tractor data ac 185



Nebraska Tractor Test 1044:
Test Date:     May 26 - June 3, 1970
Type:     Diesel 8-speed 2WD
PTO power (rated engine speed):     74.87 hp [55.8 kW]
PTO fuel use (engine speed):     5.3 gal/hour [20.1 l/hour]
PTO power (rated PTO speed):     70.72 hp [52.7 kW]
PTO fuel use (PTO speed):     4.9 gal/hour [18.5 l/hour]
Drawbar power (max):     63.82 hp [47.6 kW]
Drawbar fuel use (max):     5.3 gal/hour [20.1 l/hour]
Drawbar pull (max):     7,568 lbs [3432 kg]
Max pull gear:     1-Hi
Test report:     PDF file

Tractor data says 5.3 an hour for a 185... I couldn't put that much through my XT... I didn't run it wide open but in the 1900-2000 rpm range plowing and burned about 3 gallons an hour, doing nearly the same amount as the neighbor who said his 966 was burning 7 gallons an hour.... When we were plowing or discing, it was about 6 cans a day....For each of the XT's... now the 190 gas, less hp., would use about 8 cans  a day... when working hard. and figure about 10 hrs... 
 Want to talk about fuel hogs, Uncle had a 450 IH gas and he was out plowing with it and found out when he went out in the morning after chores, you fueled it up before leaving... come in at dinner, fuel it up, and plow till chore time and then if he did any more tilling after chores, he had to fuel up before going back out, or he would be walking home. LOL  Traded that for a D17 gas and was much happier... then bought an 1800 c series Oliver diesel, much more fuel efficient... Traded his D17 for a 170 Allis with cab and loader... and later traded the 1800 for a White 105. He loved the last two tractors. 105 had air conditioning in it. an the 170 had heat in it for winter.  LOL

the 180 only uses .4 more gals an hour then the MF. completely different tractors. id check your air filter. Nebraska tests use actual measurable data. real world has to many variables like engine wear, fuel quality etc....

nick121 wrote: Yeah, In the 7040  usually start in 3 or 4 pulling wagons  And shift it like a semi, dont even use the clutch sometimes.. no grinding if you do it right.

It's the damage you do while trying to figure out how to do it right that's the problem