Could some with first hand experience comment on fuel economy loss when switching from the stock 235/85/16 tires to a wider tire such as a 285/75/16 assuming both tires have highway tread? I'm actually thinking about going the other way around and want to know if it would be worth it to install a narrower tire.

 

tall narrow tires if you want milage and power. I run 265 75 16 and like them looks good enough for now and cruises pretty good. I want to go to 35s but need to lift the front and some other stuff.

 

I have 33 11.5 16 nitto mud grapplers with deep offset wheels 10 inches wide and i average 16-22mpgs. Narrower tires actually do alot better than wide tires anyway in mud and snow

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also depends on gearing, if its low geared itll run a taller tire better with less effort than if its high geared running a tall heavy tire.

 

From what I understand, the friction caused from wide tires is more than a narrow tire. Wonder what the difference is?

 

yeea im bout to change my tires form the standered to a 235/70 R16 ill let you knw how it goes here in a week or so

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oh wait never mind you got 285 my bad miss read

 

I've had 33x12.50s on it ever since ive had it and before i went turning it up i got over 20mpgs, still gets 16 regardless how ya drive it.

 

in the last year i have ran 315/70/17..255/85/16... and now 265/70 17..
with 3.55's mileage was not much diferent between.
if the 265's where not free I wouldnt be running the I HATE THE SMALL TIRES..
speedo is now 10% off

 

generally speaking, bigger tires (either in width or diameter) will always yield poorer fuel mileage, with the exception of slightly taller tires in a purely or nearly purely all highway-driven truck. The diesels have enough torque you won't notice it much within an inch or 2 change one way or the other. Gassers will quickly become real pigs on any size tire increase. The big MPG hit on the Ram diesels comes when you get up over around 35" or so.

 

I'll be making a 900+ mile trip dec 22nd-23rd pulling a tandem axle uhaul. I've got 305/75's mounted on 20x12" rims.... I'll let you know what my mileage is like.


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Narrow tires on a 1st Gen. looks like...... a fat lady in a mini skirt, with high heels.