Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - View Single Post - Fuel Efficiency
Thread: Fuel Efficiency
View Single Post
Old 03-05-2013, 05:25 PM   #10
Focus Enthusiast
Levi05's Avatar
Join Date: Aug 2011
Fan#: 89386
Location: Salt Lake, UT
What I Drive: 2015 Fiesta 1.0

Posts: 117
Points 858, Level 15
Points: 858, Level: 15 Points: 858, Level: 15 Points: 858, Level: 15
Level Up 58% Completed
Level up: 58% Level up: 58% Level up: 58%
Forum Activity 0%
Activity: 0% Activity: 0% Activity: 0%
FF Reputation: 1 Levi05 Good Standing Member
Buy-Sell-Trade Rating: (1)
If you do some deep research, you will find that wider tires will typically have less rolling resistance. And going to a wider tire doesnt increase the contact patch but only changes the shape of the contact patch (if tire pressures remain the same as before).

It gets complicated but simple answer is a wider tire alone wont hurt fuel mileage. Wheel weight and tire compound/tread design have a bigger impact.

Go to and lookup an article called "tyres, grip, and all that..." <- explains everything. Haha.

Last edited by Levi05; 03-05-2013 at 05:33 PM. Reason: better word choice
Levi05 is offline  
    Reply With Quote