Manufacture Size vs Other

[BrHotte]

So I bought a 94 XLT 2WD with 2.3. Needs tires and all I want is best ride and best MPG. Would I get that from the Stock size (225 70 14) or does anyone recommend a size that I may get better overall performance from.

 

[Josh B]

I just went to wmart and got the best price Actually got decent Goodyear Wranglers made in USA.

My door tag calls for 265/70R/15 but when those wore out I got used ones and 265's were hard to find so I got 235's.
According to a tire website I found through a search there was a 7% difference in diameter and circumference which caused me to lose 7 miles per 100 on the speedo, and according to a mile marker test it proved accurate, however, in my new mileage figures( taking the 7% figures into the equation) my mileage actually improved from 18/19 MPG to 21/22

I'll also add it's on a 93 Ranger 4.0 4WD with 3.73 Differential

 

[sgtsandman]

I can't tell you a size but the style of tire will make a difference. An SUV/Crossover tire will be more efficient than a truck tire. A Passenger car tire may or may not be more efficient than and SUV/Crossover tire. Just make sure it's the correct load rating and keep in mind that a Passenger tire and some SUV tires are not as forgiving of carrying a lot of weight without making sure the tire is properly inflated. Assuming they are even capable of carrying that weight because of the side wall construction. So, if you are going to be carrying quite a bit of a load from time to time, you may want to consider getting SUV tires at a minimum. An overloaded tire is a very dangerous thing.

If you are looking to change tire sizes, 225/70R15 is pretty close in size.

 

[JohnnyO]

They will be fine although you may want to get a used set of factory 15" wheels since 14" tires are getting hard to come by and often cost more than 15" tires. The 4-banger won't be happy with too big a tire so with a 15" wheel I would go with 215/70-15's.

 

[sgtsandman]

Our Rangers at work have 225/70R15s. They rarely see more than 15 mph though.

 

[4x4junkie]

215/75R14 should give slightly better MPG than 225/70R14 (narrower tires tend to have a lower rolling resistance, all else being the same).

215/70R15 is a good suggestion if you do go to 15" wheels. Indeed there are many more tires available in this size.

Both the above sizes are within 1/2" diameter of your factory 225/70R14 size.