In theory, which tire would offer the least reduction in MPG? - Toyota FJ Cruiser Forum
Wheels and Tires This section is for discussing the different wheel and tire options for the FJ Cruiser!
Forum sponsored by: Discount Tire

 65Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 41 (permalink) Old 02-13-2018, 02:43 PM Thread Starter
Forum Regular
 
Join Date: Jul 2017
Location: Lincoln, NE
Posts: 172
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 59 Post(s)
(Thread Starter)
In theory, which tire would offer the least reduction in MPG?

I am planning to change up tires this spring from the stock 265/70r17 Duelers. This is my DD and do minimal offroad, but am wanting a more All Terrain tire. Presently, I have narrowed my selection down to 2 tires, a pizza cutter and a not so pizza cutter.

Cooper ST Maxx LT255/80r17 (32.8" diameter/10.2" wide) 58lbs

or

Falken Wildpeak AT3W p285/70/r17 (32.8" diameter/11.3" wide) 50lbs

I know tread pattern does play into this, but lets just pretend they are the same. My question is which tire will offer up the least amount of reduction in fuel economy? A pizza cutter with 1" less a contact patch but 8lbs more of rotational mass or a tire with 1" more of a contact patch, but less weight?

My gut says weight plays a bigger factor, but interested in everyone else's opinion and theories.
Duke Broadway is offline  
Sponsored Links
Advertisement
 
post #2 of 41 (permalink) Old 02-13-2018, 03:03 PM
Forum Superstar
 
BlindWilly's Avatar
 
Join Date: Oct 2013
Location: Arlington, TX.
Posts: 2,887
Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 843 Post(s)
Garage
Re: In theory, which tire would offer the least reduction in MPG?

This might help, the link lets you plug in different tire sizes.
https://www.tacomaworld.com/tirecalc...0r17-285-70r17

I think the weight affects MPG more than contact surface, but I'm not an expert.

I use the Nitto Ridge Grapplers and love them. I went from the Trail Grappler M/T and my mileage didn't drop if at all. I've been getting 17.3 MPG average on the pavement.
Silent on the road, great on every terrain I've gone through so far.

Right after I bought them

Proud owner of "Muddy", my 2013 Quicksand FJ.
http://www.txpedition.com


"No Matter Where You Go, There You Are"
-Buckaroo Bonzai

Last edited by BlindWilly; 02-13-2018 at 03:05 PM. Reason: added my MPG's.
BlindWilly is offline  
post #3 of 41 (permalink) Old 02-13-2018, 03:24 PM
Forum Master
 
Irving Zisman's Avatar
 
Join Date: Jul 2015
Location: Liberal Nutsack of the US
Posts: 923
Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 507 Post(s)
Garage
Re: In theory, which tire would offer the least reduction in MPG?

I had a set of the Falken Wildpeak AT3W and loved them. They get my vote.
Sanderhawk and Duke Broadway like this.

"Those who cannot remember the past are condemned to repeat it." - George Santayana
"Any society that would give up a little liberty to gain a little security will deserve neither and lose both" - Benjamin Franklin
"You have enemies? Good. That means you stood up for something sometime in your life." - Napoleon
"Quotes found on the internet are rarely correct." - George Washington

Irving Zisman is online now  
Sponsored Links
Advertisement
 
post #4 of 41 (permalink) Old 02-13-2018, 03:27 PM
Forum Superstar
 
Iconic_'s Avatar
 
Join Date: Jun 2015
Location: Middle of Kansas
Posts: 6,927
Mentioned: 209 Post(s)
Tagged: 1 Thread(s)
Quoted: 2602 Post(s)
Garage
Lifetime Supporting Member
Re: In theory, which tire would offer the least reduction in MPG?

I'd say the passenger tire, Falken. At 8 lbs lighter its decently significant. The narrowness of the Cooper doesn't gain much MPG if any compared to a similar weighted wider tire. Technically contact patch area is 100% determined by vehicle weight and tire pressure alone. The width of the tire determines the length and width of the contact patch, overall area stays the same.
Iconic_ is offline  
post #5 of 41 (permalink) Old 02-13-2018, 04:23 PM
Forum Superstar
 
cliffy's Avatar
 
Join Date: Oct 2016
Location: Philo, OH
Posts: 2,834
Mentioned: 45 Post(s)
Tagged: 0 Thread(s)
Quoted: 657 Post(s)
Garage
Re: In theory, which tire would offer the least reduction in MPG?

I think wider equals lower mpg. At least on the hwy driving I do. Once I get the heavy tires up to speed I only have a few rolling hills to drag them up. The friction is always there. I went from 285's to 12.50's and dropped in mpg but I added a lot of weight in these wheels too. Soo, I dunno???
Duke Broadway likes this.

Dec 2017 member of the month
cliffy is offline  
post #6 of 41 (permalink) Old 02-13-2018, 04:28 PM Thread Starter
Forum Regular
 
Join Date: Jul 2017
Location: Lincoln, NE
Posts: 172
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 59 Post(s)
(Thread Starter)
Re: In theory, which tire would offer the least reduction in MPG?

That was my line of thinking, regarding weight of the tires. Plus, I assume a passenger rated tire would be more comfortable for daily driving use. My guess is either way I would be splitting hairs, just wanna be on the long hair side..lol Appreciate the insight.

Last edited by Duke Broadway; 02-13-2018 at 04:31 PM.
Duke Broadway is offline  
post #7 of 41 (permalink) Old 02-13-2018, 04:42 PM
Forum Veteran
 
thane's Avatar
 
Join Date: Nov 2010
Location: Dana Point, CA
Posts: 714
Mentioned: 17 Post(s)
Tagged: 0 Thread(s)
Quoted: 277 Post(s)
Lifetime Supporting Member
Re: In theory, which tire would offer the least reduction in MPG?

The 2"-3" lift that usually comes with the larger tires definitely pull down the MPG. Punching a larger hole in the air.

KJ6FJC
thane is offline  
post #8 of 41 (permalink) Old 02-13-2018, 04:48 PM
Supporting Vendor
 
Discount Tire's Avatar
 
Join Date: Apr 2008
Posts: 2,509
Mentioned: 27 Post(s)
Tagged: 0 Thread(s)
Quoted: 244 Post(s)
Lifetime Supporting Member
Re: In theory, which tire would offer the least reduction in MPG?

It is difficult to say without actually putting on a set of each and specifically testing them.

Whichever set you decide on, DTD has a fantastic Presidents Sale on them both until the 19th of February.
Duke Broadway likes this.

Low Prices! More Choices! Trusted Experts!
At The Store: www.discounttire.com
To Your Door: www.discounttiredirect.com

Sales and Technical: 1.888.459.4080

Found a Lower Delivered Price?

Need Tires for Your Camper or Trailer?

Help Discount Tire Support FJ Cruiser Forums

Last edited by Discount Tire; 02-14-2018 at 08:07 AM.
Discount Tire is offline  
post #9 of 41 (permalink) Old 02-13-2018, 05:49 PM
4-Corners Moderator
 
FJX2000's Avatar
 
Join Date: Dec 2011
Location: Cortez, CO or Provo, UT
Posts: 4,778
Blog Entries: 21
Mentioned: 40 Post(s)
Tagged: 0 Thread(s)
Quoted: 449 Post(s)
Garage
Lifetime Supporting Member
Re: In theory, which tire would offer the least reduction in MPG?

I've wondered a similar question, my current setup with 285s and 16" wheels will be 10 lbs heavier than the 315s on 17" wheels im installing soon and even though the new setup will have larger 34.8" tires it is lighter 10 lbs lighter per tire/wheel so will that make a difference? Who knows haha
FJX2000 is offline  
post #10 of 41 (permalink) Old 02-13-2018, 08:18 PM
Forum Veteran
 
CRayFJ's Avatar
 
Join Date: Nov 2014
Location: Greenville, SC
Posts: 797
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 255 Post(s)
Garage
Lifetime Supporting Member
Re: In theory, which tire would offer the least reduction in MPG?

Also depends on how much highway driving vs stop-and-go driving you do. Weight has the most effect on your mileage during acceleration while rolling resistance will affect the overall mileage. However in your case I think the Falken wins in both categories. The Falken is lighter and the p-metric version, if properly inflated, will most certainly have lower rolling resistance than the LT Cooper.
Duke Broadway likes this.

C Ray
Engineering - It's like math, only louder!
Garage
CRayFJ is offline  
Reply

  Toyota FJ Cruiser Forum > Toyota FJ Cruiser Discussion > Wheels and Tires

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Toyota FJ Cruiser Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome