Change in MPG with with tires?
#1
Change in MPG with with tires?
I'm curious, for those who got rid of the stock 235's and went to 265 or 275 tires, how much of a change in MPG did you notice, if any?
I have a new 2018 GT base w/MT82, and I am averaging about 26mpg with my 40mi highway commute everyday. I have a sneaky suspicion it may be nice to upgrade to 19x9's and a set of 265's squared for winter driving when the roads get a little more slippery. A little more footprint for better traction. We get a lot of black ice here in the PacNW. Anyway, if I get a set of aftermarkets that actually weigh a couple pounds less, but a slightly bigger footprint, I can't help but wonder how much of a change to expect.
I have a new 2018 GT base w/MT82, and I am averaging about 26mpg with my 40mi highway commute everyday. I have a sneaky suspicion it may be nice to upgrade to 19x9's and a set of 265's squared for winter driving when the roads get a little more slippery. A little more footprint for better traction. We get a lot of black ice here in the PacNW. Anyway, if I get a set of aftermarkets that actually weigh a couple pounds less, but a slightly bigger footprint, I can't help but wonder how much of a change to expect.
#2
Legacy TMS Member
Join Date: January 25, 2010
Location: Massachusetts
Posts: 3,828
Received 1,556 Likes
on
1,065 Posts
very hard to say how much, but yeah it will probably go down a little; probably less than 1 MPG
Back when I first got my 2010 GT I used to get about 27 MPG on my highway commute; over the years as I made various modifications that dropped to about 24 or so . . . one of those modifications was wider tires and bigger diameter wheels, but it was mixed with other things so I can't say how much was due to the tires.
Back when I first got my 2010 GT I used to get about 27 MPG on my highway commute; over the years as I made various modifications that dropped to about 24 or so . . . one of those modifications was wider tires and bigger diameter wheels, but it was mixed with other things so I can't say how much was due to the tires.
#3
V6 Member
I don't think you would notice much to be honest. The European GTs are premium so have the 19x9" 255/40 and rear 19.9.5" rear with 275/40s. I can get 30 plus on a motorway run and even mid to late 20s with a mix of highway and dual carriageway.
#4
2013 RR Boss 302 #2342
Join Date: March 6, 2012
Location: Lancaster, PA
Posts: 11,772
Likes: 0
Received 2,300 Likes
on
1,714 Posts
Originally Posted by Marco_GT
I don't think you would notice much to be honest. The European GTs are premium so have the 19x9" 255/40 and rear 19.9.5" rear with 275/40s. I can get 30 plus on a motorway run and even mid to late 20s with a mix of highway and dual carriageway.
#5
V6 Member
indeed. I don't think you have the equivalent in the US. I've never seen them. Most town main streets are like our motorways (freeways). A dual carriageway is two lanes in both directions usually with frequent roundabouts or traffic lights. I've not seen a roundabout in the US either, except in a park. ;-)
Last edited by Marco_GT; 7/13/18 at 04:00 AM.
The following users liked this post:
wanted33 (7/14/18)
#6
Legacy TMS Member
Join Date: January 25, 2010
Location: Massachusetts
Posts: 3,828
Received 1,556 Likes
on
1,065 Posts
#7
V6 Member
Has to be said, I love driving in the states. Another road trip in September. Can't wait.
#8
Shelby GT350 Member
Join Date: February 26, 2012
Location: Down south in Dixie
Posts: 2,204
Received 390 Likes
on
287 Posts
indeed. I don't think you have the equivalent in the US. I've never seen them. Most town main streets are like our motorways (freeways). A dual carriageway is two lanes in both directions usually with frequent roundabouts or traffic lights. I've not seen a roundabout in the US either, except in a park. ;-)
The following users liked this post:
area5179 (7/14/18)
Thread
Thread Starter
Forum
Replies
Last Post
samiwanka1
Suspension, Brakes, and Tire Tech
13
2/19/13 02:01 PM