mileage- 2wd vs 4 wd ?

[emeraldcoupe]

i'm not expecting great mileage but i was wondering, all things being equal, how much difference in mileage there is between the 2 wd trucks and 4 wd? seems to be alot more 4 wd trucks here.

 

[LEB Ben]

More 4wd trucks here because 2wd's aren't really trucks. Now that I got that out of my system...hahaha, there's nothing wrong with 2by's. It's been my experience that 2by's typically seem to get 25-50% better fuel economy with the same engine/tranny setup. Still not great though, you have a 4wd with a 460 and you get 10, rule of thumb for me is the 2wd brethren will get no more than 15.


That being said, your question is a little loaded. There are looooooooooooots of factors to be considered, gearing, engines, tranny, dead weight, driving style, driving terrain, etc.

 

[Austin]

^^What he said^^

Minus the 2by not being a truck thing... My 2by gets a constant 10mpg. With anything this generation and older, I wouldn't wish to see anything more than 15... with a tail wind... downhill.

 

[Justin]

I'd wager its probably closer to a 2-3 MPG difference between stock 4wd and stock 2wd.

Thats been my experience, but it depends on a lot of factors and your or your mechanic's ability to keep a carb tuned well.


I've pulled 15-16 before with a 77 300 w/ C4 and 3.08 gear ratio. Put I had just fixed an intake leak and rebuilt the carb.

 

[polarbear]

You'd be hard-pressed to even find a 2WD in this part of the country. 5 mpg on the older trucks, 1 or 2 mpg difference on the newer ones.

 

[smokey]

I would say 5 MPG.
Same as bear said 2wd trucks are like hens teeth around here.
Heck I thought all trucks were 4WD till I was in my early teens when a relative brought a truck up from down south and asked him why his truck was so low to the ground compared to all the other trucks. When he said it was 2wd I laughed at him.

 

[polarbear]

Yep- we brought in a '94 2WD Explorer in trade, and the used car manager didn't even know they made one (booked it as a 4WD).

 

[Mil1ion]

The difference is in the size of tires, wheels, and axle and transmission ratios

 

[TexasRho83]

I had a 78 F250 SC 4x4 that got around 14mpg on the highway with street tires. That's damn good for a 400 motor and 4.10 gears

 

[1985 Ford F-150]

Best ive got out of my 72 is 11 and a half almost all highway.

 

[dakonthemountain]

8.5 hauling a 4,000lb camper. Best of around 12 empty with a tail wind... 2wd by the way...........BEN!!!!
Dak