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-   -   Do Tires make a Big Diff. in MPG ? (

02viperacr 06-02-2012 07:52 AM

Do Tires make a Big Diff. in MPG ?
I just noticed that the tires on my escape hybrid are M+S ... driving in normal weather they seems very noisy and i know the more grippy and big the tread is, the worst mpg it is . Is it worth it to buy a second set of tires that are performanced geared for the summer ? would it make that much of a difference?

bsgimmrok 01-03-2013 02:00 PM

Re: Do Tires make a Big Diff. in MPG ?
Firestone sells tires for hybrid vehicles purpose. You may want to ask them.

hcbflash 01-05-2013 09:14 PM

Re: Do Tires make a Big Diff. in MPG ?
A Hybrid vehicle (in particular) isn't at all like your grampa's old pickup back in the 70s. "Pimping out" a hybrid is absolutely stupid, even more so than most other vehicles. Any hybrid vehicle was designed to have certain tires, and it's easy to find out those specifications.

A more direct answer: YES!!!! Tires do in fact make a very substantial difference in vehicle MPG. Pressurization, size, design, tread pattern, mounting, and state of wear all matter. Tires MAY even make more difference than fuel!

Go to and spend a few hours learning about tires. There are other websites too, but I haven't seen a better one than tirerack for learning a lot about tires.

Sarfa33 02-12-2013 03:32 PM

Re: Do Tires make a Big Diff. in MPG ?

Originally Posted by 02viperacr (Post 242601)
would it make that much of a difference?

Back in '08, I had an '05 Prius and I decided to change the tires out. The instant that I switched from the stock tires to the new set (generic firestones, I think), I lost about 4mpg on average, or about 10%. :cry:

So I'd say that the effect is definitely not insignificant. :(

Smooth sailing,

Civic Duty 03-06-2013 10:32 PM

Re: Do Tires make a Big Diff. in MPG ?
I second that. I switched all four OEM Dunlop tires to Michelin X-Radial in 2009 (after 4 years on Dunlops and 1 scary blow-out at highway speeds) and immediately lost about 5 MPG (49 -> 43 or so, so again about 10%). The X-Radial are not "hybrid" tires but they are supposed to be pretty low rolling resistance. I was amazing what a hit my MPG took. Then it got even worse when I moved into a city and take only relatively short commutes with lots of traffic.

I will say that the overall ride quality and road noise improved slightly when I got the Michelins. They still have some tread left and I am debating whether to go for some super-LRR "hybrid" tires again when these go.

Hot_Georgia_2004 04-09-2013 08:00 PM

Re: Do Tires make a Big Diff. in MPG ?
I'm on my 3rd set of Dunlops set to 50PSI. Tires do make a difference and I gain 5-7MPG with high inflation. A bit hard on the behind though. I've just crossed 250,000 miles and those extra MPG's really add up.

tbaleno 04-18-2013 08:10 AM

Re: Do Tires make a Big Diff. in MPG ?
You only went through 3 sets of tires in 250,000 miles? I'm about 100K miles behind you and I'm on my third set already. Technically my fourth because I just bought some Michelin Defenders - they seemed the best decent LRR available. I've always called the Dunlops a death trap but that was just me overexagerating as they really aren't that bad. I wanted a slightly better tire than the dunlops and with a 90K warranty on the tires I should be good to go for a whlie.

My previous tires probably would have lasted a bit longer, but I was lazy and let the psi drop to about 45.

The good news with the defenders is I get the same mileage as with the dunlops. That is with winter gas I get about 52 mpg. I'll have to let you know in a few weeks when we go to summer gas.

jheidmann1550 09-08-2013 03:29 PM

Re: Do Tires make a Big Diff. in MPG ?
I am about to buy tires - now have 48000 on the original toyota tires. Not nearly enough. But, i have been running them in the low 30's psi range (pr mfgr. recommendation). I have had edge tread wear due to underinflation per the dealership. So now have them at 45psi and will try 50 . Are their any safety issues? Thanks in advance for any info.
Phx jim

GeorgiaHybrid 09-08-2013 05:05 PM

Re: Do Tires make a Big Diff. in MPG ?
Your tires should have a maximum COLD inflation pressure on the side wall of the tire. As long as you run that pressure or less, you should be OK.

Insight2011 10-23-2013 07:09 AM

Re: Do Tires make a Big Diff. in MPG ?
Question in this regard: I replaced my 2011 Insight's tires with Tracmax 175/65/15 radial 102 this morning and am wondering if it was a good move. Any ideas? I am worried they may not be LRR, but do not know how to tell..

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