MPG drop with touring wheels?

bino · 08-04-2008, 04:19 PM

I also have changed my stock 15's to touring wheels ... noticed that the mpg dropped by 1-3... my tire pressure is 37/35

ZippyPri · 08-04-2008, 04:28 PM

I get about 75 to 90 around town doing 30-40, in city i get about 47 and highway 50-60

ZippyPri · 08-04-2008, 05:11 PM

I keep my tires at 44/42

Boo · 08-05-2008, 12:42 PM

FYI, the Falken Ziex ze-912 was Consumer Reports' top rated Ultra High Performance all season tire in its January 2008 tests of Ultra High Performance tires. I don't know about its rolling resistance as compared to the Touring's OEM Bridgestone Turenza El400's, but Consumer Reports rated its rolling resistance as "good".

It can be bought at DiscountTire.com in the Touring's OEM 195/55/16 size for $77 each.

arvind · 08-06-2008, 07:38 PM

Update: After refueling and pumping up my tires last night to about 42 front and 40 rear, I noticed an increase in my MPG... Im getting 49.5 over 140 miles covered. Amazing!!!

misslexi · 08-06-2008, 08:09 PM

Quote:

Originally Posted by doubleg2005

the question is: do you have bridgestone turanza tires? or just the touring wheels? running 35 psi in the turanzas would definitely cause a mpg hit since they are rated at 51...

I could be wrong but I don't believe a tire's maximum rated pressure means it must be used at that pressure.

Boo · 08-06-2008, 08:36 PM

Quote:

Originally Posted by arvind

Update: After refueling and pumping up my tires last night to about 42 front and 40 rear, I noticed an increase in my MPG... Im getting 49.5 over 140 miles covered. Amazing!!!

Hey we told you so!

My guess is that in the long run, you'll end up with a 2 to 3 mpg drop -- and not that huge drop that you had posted about initially.

barryjkaufman · 08-06-2008, 09:28 PM

Arvind: I just put on Falken 205/55/16 tires, Ziex 325. I use to get 48 mpg and in the first 300 miles on these new tires, I've been averaging around 43 mpg. Of course you have to add another 2% to that number because of the change in tire size. I'll let you know how I do as I break the tires in. Barry

MAXINGmyMPGs · 08-06-2008, 09:56 PM

Barry: You have some really insightful posts. Very informative. I'm curious about your gas consumption. I need to replace my tires soon, and it looks like the 195/55/16 is a tough size to find. I'm going to jump up to 205's I think. Have you experienced any noticable changes in the way the car drives with the bigger tires? Keep the awesome posts coming. MAX

arvind · 08-06-2008, 10:10 PM

Im hoping that ill be in the range im at currently...49.5. I didnt drive like a granny today, just normal.... some city and some highway. I dont mind a little drop... but last week was outrageous!

08-04-2008, 04:19 PM	#21
bino Junior Member Join Date: Mar 2008 Location: Rancho Cucamonga,CA Posts: 27 My Car: 2008 Prius Package: #5 Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 1	Re: MPG drop with touring wheels? I also have changed my stock 15's to touring wheels ... noticed that the mpg dropped by 1-3... my tire pressure is 37/35

08-04-2008, 04:28 PM	#22
ZippyPri Member Join Date: Jul 2008 Location: Boston Posts: 39 My Car: 2008 Prius Package: #2 Touring Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	Re: MPG drop with touring wheels? I get about 75 to 90 around town doing 30-40, in city i get about 47 and highway 50-60

08-04-2008, 05:11 PM	#23
ZippyPri Member Join Date: Jul 2008 Location: Boston Posts: 39 My Car: 2008 Prius Package: #2 Touring Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	Re: MPG drop with touring wheels? I keep my tires at 44/42

08-05-2008, 12:42 PM	#24
Boo Boola Boola Member Join Date: Feb 2007 Location: New York, NY Posts: 2,343 My Car: 2007 Prius Package: #2 Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 13	Falken Ziex ze-912 FYI, the Falken Ziex ze-912 was Consumer Reports' top rated Ultra High Performance all season tire in its January 2008 tests of Ultra High Performance tires. I don't know about its rolling resistance as compared to the Touring's OEM Bridgestone Turenza El400's, but Consumer Reports rated its rolling resistance as "good". It can be bought at DiscountTire.com in the Touring's OEM 195/55/16 size for $77 each. Last edited by Boo; 08-05-2008 at 12:46 PM.

08-06-2008, 07:38 PM	#25
arvind ape Join Date: Jul 2008 Location: san francisco Posts: 12 My Car: 2007 Prius Package: #6 Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 1	Re: MPG drop with touring wheels? Update: After refueling and pumping up my tires last night to about 42 front and 40 rear, I noticed an increase in my MPG... Im getting 49.5 over 140 miles covered. Amazing!!!

08-06-2008, 09:28 PM	#28
barryjkaufman Junior Member Join Date: Jun 2007 Posts: 24 My Car: Package: Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 1	Re: MPG drop with touring wheels? Arvind: I just put on Falken 205/55/16 tires, Ziex 325. I use to get 48 mpg and in the first 300 miles on these new tires, I've been averaging around 43 mpg. Of course you have to add another 2% to that number because of the change in tire size. I'll let you know how I do as I break the tires in. Barry

08-06-2008, 09:56 PM	#29
MAXINGmyMPGs Junior Member Join Date: Aug 2008 Location: Los Angeles Posts: 1 My Car: 2006 Prius Package: S Touring Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 0	Re: MPG drop with touring wheels? Barry: You have some really insightful posts. Very informative. I'm curious about your gas consumption. I need to replace my tires soon, and it looks like the 195/55/16 is a tough size to find. I'm going to jump up to 205's I think. Have you experienced any noticable changes in the way the car drives with the bigger tires? Keep the awesome posts coming. MAX

08-06-2008, 10:10 PM	#30
arvind ape Join Date: Jul 2008 Location: san francisco Posts: 12 My Car: 2007 Prius Package: #6 Nominated 0 Times in 0 Posts TOTM Awards: 0 Friends: 1	Re: MPG drop with touring wheels? Im hoping that ill be in the range im at currently...49.5. I didnt drive like a granny today, just normal.... some city and some highway. I dont mind a little drop... but last week was outrageous!

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