Let's talk tires
More Turbo
Joined: Oct 2023
Posts: 700
Likes: 478
Has to be done with outside software. Forscan or a dealer. Can guarantee the tire place did not recalibrate and probably doesnt even have the software to.
Logistics Pro
Joined: Sep 2002
Posts: 4,410
Likes: 1,016
From: Central KY
Regarding the MPG discussion... I log my mileage with Fuelly so it's actual math and it's accurate. On stock wheels with 275/70R18 stock tires I was getting 18 MPG on my weekly commute which is about 40-50 miles daily and mixed city/highway. With the 35x12.50R18 Falken A/T4W tires I'm at 16 MPG doing the same driving, same speeds, same usage of the truck.
So, for a 295/70R18 which fits right in between the stock size and 35s, I would expect only a 1 MPG loss. If you lost 4 MPG there's something else wrong.
So, for a 295/70R18 which fits right in between the stock size and 35s, I would expect only a 1 MPG loss. If you lost 4 MPG there's something else wrong.
Lead Driver
Joined: Feb 2005
Posts: 7,924
Likes: 2,642
From: The Great State of Texas
I recall reading on another forum that an owner of a Bronco Sport changed his tires to the Falken AT4W and noticed it took more throttle to get the vehicle to move when at a full stop. Wonder if the rolling resistance is greater with these tires?
More Turbo
Joined: Oct 2023
Posts: 700
Likes: 478
If you guys noticed he never recalibrated for the taller tire size and is basing his calculation off the odometer which is reading less than his actual travelled miles.
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Hotshot
Joined: Mar 2017
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From: Chaz
The miles are off about 3.5% and yes that calculation makes a difference.
So 13.5 x 1.35 ~ 14mpg.
Totally plausible to loose that with heavier aggressive tread tires. I mentioned it earlier in the thread they are heavy.
He also doesn’t have a large sample to confirm. I bet he lands around 14.5mpg eventually. He should consider Yokohama G015 or Michelins in that size if mpg is a bigger concern.
So 13.5 x 1.35 ~ 14mpg.
Totally plausible to loose that with heavier aggressive tread tires. I mentioned it earlier in the thread they are heavy.
He also doesn’t have a large sample to confirm. I bet he lands around 14.5mpg eventually. He should consider Yokohama G015 or Michelins in that size if mpg is a bigger concern.
Mountain Pass
Joined: Jan 2023
Posts: 124
Likes: 48
Logistics Pro
Joined: Sep 2002
Posts: 4,410
Likes: 1,016
From: Central KY
That's almost certainly a result of going from a P rated tire to a heavier duty tire. Most of the A/T4W sizes are 3 ply sidewalls and heavier construction across the face of the tire. On a light duty vehicle like a Bronco Sport or even a Bronco that's going to be a very noticeable change.
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Cross-Country
Joined: Jun 2011
Posts: 66
Likes: 16
The miles are off about 3.5% and yes that calculation makes a difference.
So 13.5 x 1.35 ~ 14mpg.
Totally plausible to loose that with heavier aggressive tread tires. I mentioned it earlier in the thread they are heavy.
He also doesn’t have a large sample to confirm. I bet he lands around 14.5mpg eventually. He should consider Yokohama G015 or Michelins in that size if mpg is a bigger concern.
So 13.5 x 1.35 ~ 14mpg.
Totally plausible to loose that with heavier aggressive tread tires. I mentioned it earlier in the thread they are heavy.
He also doesn’t have a large sample to confirm. I bet he lands around 14.5mpg eventually. He should consider Yokohama G015 or Michelins in that size if mpg is a bigger concern.
I'm posting the tire size comparison thing I found online.
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