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10-31-2008, 08:23 PM | #19 |
Audio Junky
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I ran 32-40psi on my tires depending on the heat (32 psi during winter, up to 40 during summer), and still have very minimal tire wear after 18k miles & 1 year. Just had an oil change and the dealership said they were just over 36 (car was cold).
I'm happy to see people get so sarcastic and bent out of shape so quickly. Reccomended by toyota is 32... bridgestone says max of 44. something in the range of 36-42 will not hurt the tires at all... I'd take bridgestone over toyota.... Bridgestone makes the tires... toyota only orders them. in 5k if I start to have weird tread issues i'll be sure to lower the psi.. but, as said before.. .many people have gone upwards of 50psi without apparent negative effects. |
10-31-2008, 09:37 PM | #20 | |
Drives: 08 Sedan Join Date: Oct 2008
Location: Tyler, TX
Posts: 899
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Quote:
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10-31-2008, 10:10 PM | #21 |
Drives: '08 Yaris sedan , '08 Liftback Join Date: Oct 2008
Location: Northeast
Posts: 643
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go with the flow ....... no winning .
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10-31-2008, 11:13 PM | #22 |
Drives: 2008 Yaris HB Auto Join Date: Oct 2008
Location: Tennessee
Posts: 13
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6,000 miles at 50 lbs. (so far) and all is well. This is a Fuel Economy forum.
Flame if you must, but this is standard Hypermiling stuff and is well tested. The stickies in this forum call for increasing psi to at least the max side wall pressure. (44 lbs.) Cleanmpg.com says the same. This has been discussed to death both places, and it is up to the driver to decide what they want. Lower (recommended) tire pressures are quieter and smoother but increase rolling resistance and decrease mileage. It's also more likely to wear the outside edge of the tread as the tire slightly deforms when cornering. Increased pressures have far less rolling resistance and less road contact, so mileage and handling is better, but it comes at a comfort cost of a rougher ride, increased road noise and harshness. Proven by Hypermilers to wear well over time. With less deformity when cornering, the tread actually wears more evenly across the tread. Flame away |
10-31-2008, 11:18 PM | #23 |
Drives: Yaris Liftback Join Date: Oct 2008
Location: Lexington, KY
Posts: 55
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Leak out???? Ummm, you use nitrogen because it is less suseptible to temp change as the tire warms up.
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Can't believe I'm modding a Yaris, I must really miss my STi... |
10-31-2008, 11:23 PM | #24 |
Drives: 08 lb Join Date: Oct 2008
Location: S.A.TX
Posts: 12
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6k and you know what your talking about? the tires barely broken in....
on my truck ive got about 80k on the tires and there is still tread left! yes i do go by the tires recommended psi and agree with yall there but before we claim we know facts just give it time. as for hypermiling its great to say your getting such high mpg but im sure over the life of a car x treme hyperm. would cost you more $ from excessive wear of parts... but thats just my .02 and im egotistic a$$hole who ownes two trucks and a yaris. |
10-31-2008, 11:24 PM | #25 | |
Drives: Yaris Liftback Join Date: Oct 2008
Location: Lexington, KY
Posts: 55
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Quote:
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Can't believe I'm modding a Yaris, I must really miss my STi... |
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10-31-2008, 11:24 PM | #26 |
Drives: 08 lb Join Date: Oct 2008
Location: S.A.TX
Posts: 12
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10-31-2008, 11:25 PM | #27 |
Drives: 08 lb Join Date: Oct 2008
Location: S.A.TX
Posts: 12
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10-31-2008, 11:51 PM | #28 | |
Drives: 2008 Yaris HB Auto Join Date: Oct 2008
Location: Tennessee
Posts: 13
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I would never go over 100 mph, the mileage would suck. With less road contact, turning is tighter and more responsive. Performance high speed driving is not the topic. |
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10-31-2008, 11:54 PM | #29 |
Drives: 08 lb Join Date: Oct 2008
Location: S.A.TX
Posts: 12
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do you do 80?
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11-01-2008, 12:11 AM | #30 |
Drives: Yaris Sedan 5MT Join Date: Oct 2008
Location: SoCal
Posts: 865
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I do 80mph once in a while. Most of the time, my speedometer never breaks 55mph.
I was at 50psi for about 10k and 60psi for the last 5K...I now have a total of 21k miles, just did an oil change. I agree very much with Mark. If Bailout were to post, he would pretty much agree with Mark as well. As for the over inflation.... have you heard of any major incidences yet? I mean all those Ford Explorer tire problems were a major part, under inflation. http://www.usatoday.com/money/autos/...y-campaign.htm Under the things that hi-mpg people like to do, it's one of the more controversial options. You'll find people between 45-65psi. Of course call them crazy, but no major incidences yet. Many do report longer tread life. So...doing max sidewall is not drastic. |
11-01-2008, 12:16 AM | #31 |
Drives: 2008 Yaris HB Auto Join Date: Oct 2008
Location: Tennessee
Posts: 13
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11-01-2008, 01:41 AM | #32 |
Steals terrorist's lunch
Drives: 2007 Yaris Liftback Join Date: Mar 2007
Location: Reno, Nevada, USA
Posts: 1,299
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BailOut = 60,000 miles at 50-60 PSI. Has experienced better handling, longer tread life and higher MPG. No incidents.
Collective membership at CleanMPG.com = Millions of road miles at 50-70 PSI. Folks have experienced better handling, longer tread life and higher MPG. No incidents. A large contingent of the PriusChat membership = Millions of road miles at or slightly above max sidewall. Folks have experienced better handling, longer tread life and higher MPG. No incidents. You guys are welcome to your wive's tales, superstitions and armchair science. The real world results are all I need.
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- Brian Share the Road I often carry 2 carpool passengers and mountain bikes or snowboards/skis over a 4,500 foot elevation difference. Click the graphic above to see my detailed mileage logs. |
11-01-2008, 06:43 AM | #33 |
aka Jack Wolfskin
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My winter tyres Yokohama 185/65 R15 have 36psi and my sommer tyres Yokohama 205/45 R17 have 39 psi.
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11-01-2008, 07:13 AM | #34 | |
Drives: Yaris Sedan (auto) Join Date: Jun 2007
Location: Toronto, Ontario
Posts: 545
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Quote:
The amount of money and time thrown at an idea does not make it true. I've read extensively on this topic before I engaged in the practice myself. Over the course of 2 1/2 years I went from a practice of car manufacturers recommended psi, to tire manufacturers max side wall, to a little more. Now I am always around 50 psi. I am not the authority on this topic by any means, but I know what is true and what is not from seeing peoples real world results and from my own experience. If you have an open mind and really want to learn something, go and talk to real world experts at cleanmpg. They are a very mature group who present their actual experiences to you and explain why they have achieved those results. |
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11-01-2008, 11:00 AM | #35 |
Drives: 08 Sedan Join Date: Oct 2008
Location: Tyler, TX
Posts: 899
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I have a Cousin who used to run 40 psi in his tires on a 1996 Grand AM and he had a blow out one day, which caused some damage to his left front rim and some other damage up front. When the insurance guy check it out, he tested the psi in the other tires and when he found that they were all at 40 psi, the insurance co.(which was All-State), would not pay since he was not following the manufactors psi rating of 32. So he ended having to pay about $1200 out of pocket just because he did not follow the guidelines.
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11-01-2008, 08:45 PM | #36 |
Drives: 07 Yaris sedan Join Date: Jun 2007
Location: Keremeos BC
Posts: 986
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Seems to me that Allstate will go to ANY lengths to avoid paying out, moreso than any other company I dealt with in the auto collision repair industry.
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