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04-12-2007, 09:50 PM | #19 |
Clean and (dis)Functional
Drives: Yaris 2dr--Black Betty Join Date: Mar 2007
Location: Tropical Minnesota
Posts: 562
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I agree with BailOut that tires last 85,000 miles if you drive like Grandma with a very light car....My Dad changed the tires on his 83 Mazda pickup at 109,000 not because of the tread but the sidewalls were ready to blow! And I also agree 60psi will help gas milage but it is unsafe as hell...probably manslaughter charge from the family of the person you kill (if they ever find out you hade 60 psi in your tires--total neglect of safety notices from tire and car manufacturers)
.5 to 2 mpg isn't worth it Just because you're sober doesn't mean your not responsible!
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04-12-2007, 10:30 PM | #20 |
Steals terrorist's lunch
Drives: 2007 Yaris Liftback Join Date: Mar 2007
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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. |
04-12-2007, 10:35 PM | #21 |
der Zeck
Drives: '05 Audi A4 1.8t quattro Join Date: Sep 2006
Location: Toledo, OH
Posts: 5,231
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I think this will trump your source guy
http://www.betiresmart.ca/inflation/...n&loc2=placard http://www.rma.org/tire_safety/tire_...afety/tpms.cfm http://www.tiresafety.com/
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04-12-2007, 10:44 PM | #22 |
Steals terrorist's lunch
Drives: 2007 Yaris Liftback Join Date: Mar 2007
Location: Reno, Nevada, USA
Posts: 1,299
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Umm, Black Yaris, what are you trying to show with those 3 links? I don't see what information they contain that you are trying to convey.
One just apes the old adage about following the vehicle manufacturer's recommendation, another says people don't check their tire pressure, and the last doesn't say anything except it provides a shamelss plug for Bridgestone who, of course, would much prefer you run your tires ragged in 20,000 - 30,000 miles rather than 85,000+. If I missed anything there feel free to correct me.
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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. |
04-12-2007, 11:51 PM | #23 |
Clean and (dis)Functional
Drives: Yaris 2dr--Black Betty Join Date: Mar 2007
Location: Tropical Minnesota
Posts: 562
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In the 3rd link under the 'MAINTENENCE' section....it states to NEVER inflate passenger car tires above the listed pressure on the tire.....as an engineer I can only assume this means the manufacturer has limits to his liability and states it clearly here....how clearer can it get? You may never have a blowout at 90psi...but just like drinking and driving, if you go beyond prescribed limits you are personally responsible for your actions if something goes wrong.
As for the driving instructor...I didn't see any credentials other than he has taught 'so&so many'. Butt dynos don't show failure point, strength of materials, dynamic loads, etc. so where does he base his knowledge on tire pressure science? Max pressure listed on the tire is just that....it's there for a reason.
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04-13-2007, 12:14 AM | #24 |
Drives: 2005 Scion xB Join Date: Nov 2006
Location: The Black Hills of South Dakota
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Bailout- It's totally cool if you want to do this on your own car, but why would you recommend a possibly dangerous modification to other people who may or may not know better? Wouldn't you feel bad if they had a blowout and someone got hurt as a result? Gamble with your own life, and if YOU have a blow-out and harm another individual, I hope you take responsibility for your actions.
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04-13-2007, 12:20 AM | #25 |
Steals terrorist's lunch
Drives: 2007 Yaris Liftback Join Date: Mar 2007
Location: Reno, Nevada, USA
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We keep coming back to what I first said...
Pump up your tires to *at least" the max sidewall. If you are still uncomfortable with that statement then read it as "Pump up your tires to max sidewall." If you want to go higher you can and there are many people that do and and have done so for quite a while. However, as with all other things hypermiling you certainly don't *have* to do it if you don't wish to, whatever your reasons. Just take the information, assimilate it, and make your own decisions. On a side note, for a bunch of folks that are willing to swap out engine, exhaust, suspension, tire size and width and just about any other components on a whim you sure are ultra conservative when it comes to tire pressure and oil change intervals. hehe Edit: Peter, that is way over the top and totally uncalled for. Please do not make such unfounded alarmist statements. Hundreds of people between the Prius and general hypermiling communities representing over a million collective miles of driving on all kinds of roads and in every condition run at higher than max sidewall, and over a 5 or 6 year period not a single incident of a blown tire or this pressure contributing to an accident has come to light.
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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. |
04-13-2007, 12:22 AM | #26 |
vroom vroom
Drives: lil red 5-door Join Date: Sep 2006
Location: Bangkok, Thailand
Posts: 7,744
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Well he's not forcing anyone to run 60PSI, just sharing his experience, observations and research.
It is entirely up to the individual to follow or not, but if you are interested, why not try a halfway point, like 45-50PSI? It's definitely safer than under-inflated tyres! (which reminds me, I gotta check my pressure...)
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04-13-2007, 12:23 AM | #27 |
vroom vroom
Drives: lil red 5-door Join Date: Sep 2006
Location: Bangkok, Thailand
Posts: 7,744
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hahha jinx!
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The price of freedom of religion, or of speech, or of the press, is that we must put up with a good deal of rubbish. - Robert Jackson Bye bye 1NZ... |
04-13-2007, 08:00 AM | #28 | ||
Drives: . Join Date: Feb 2007
Location: .
Posts: 1,931
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Quote:
Quote:
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04-13-2007, 10:10 AM | #29 | |
Steals terrorist's lunch
Drives: 2007 Yaris Liftback Join Date: Mar 2007
Location: Reno, Nevada, USA
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Quote:
44 + 11 = 55 So go with 55 PSI instead of 60 if it makes you feel better.
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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. |
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04-13-2007, 10:25 AM | #30 | |
der Zeck
Drives: '05 Audi A4 1.8t quattro Join Date: Sep 2006
Location: Toledo, OH
Posts: 5,231
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Quote:
on a side note, have you ever seen a tire blow up at 60 psi? I have, it ain't pretty, had to rush the kid to the hospitol, and all he was doing was airing up a pass tire over the rec press cause the cust thought it was best, and he was new and did not know any better, and it blew up in his face... kid was fine... but gave us a scare.....
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04-13-2007, 01:34 PM | #31 | |
Drives: . Join Date: Feb 2007
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Quote:
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04-13-2007, 03:09 PM | #32 |
Steals terrorist's lunch
Drives: 2007 Yaris Liftback Join Date: Mar 2007
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Then stay off my roads, SailDesign, because I call on your repost. The original writer apparently failed his advanced math classes and has a paparazzi-style penchant for focusing on and embellishing the one-offs.
On a side note it is best to provide a link to your content source.
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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. |
04-13-2007, 03:42 PM | #33 | |
Drives: . Join Date: Feb 2007
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Quote:
http://www.4x4now.com/sf1296.htm I have to admit that the "Ecological 4x4" title is a bit of an oxymoron, though Looking again at thet "Hows and Whys" section of the CleanMPG site, I note a great many of the things that really really annoy me in other drivers being listed as good. Amongst them: 1) Speeding up and slowing down repeatedly (Pulse&Glide). So frikkin dangerous as no-one else on the road knows what you are about to do next. 2) Speeding up on the downhills and slowing down on the ups. I know, everyone does it, but it's another PITA. 3) Drafting. Stay off my tail and I won't practice brake-stands. Honest! 4) Surfing - aka staying in my blind spot when I would like to pass the other idiot on the road. 5) High-lining or whatever (running with your lefthand wheel on the white line and your righthand wheel on the "hump" between normal wheel paths). This si actually described as helping keep others awake! If you expect me to pull out further and sooner to pass you, better wear some ear-plugs. If you are not in your travel lane, then I will let you know. Look up Rhode Island General Law Title 31, Chapter 15, Section 4. OTOH, I'll save you the trouble. Here it is: § 31-15-4 Overtaking on left. – The following rules shall govern the overtaking and passing of vehicles proceeding in the same direction, subject to those limitations, exceptions, and special rules stated in this section: (1) The driver of a vehicle overtaking another vehicle proceeding in the same direction shall give a timely, audible signal and shall pass to the left at a safe distance and shall not again drive to the right side of the roadway until safely clear of the overtaken vehicle. (2) Except when overtaking and passing on the right is permitted, the driver of the front vehicle on the audible signal of the overtaking vehicle shall give way to the right, and shall not increase speed until completely passed by the overtaking vehicle. So, if you are hogging the middle of the lanes, and I honk at you, you are required to move out of the way and not speed up until I'm past. I have only tried this on cops I know Steve "doesn't need to drive badly to use less gas" |
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04-13-2007, 03:43 PM | #34 | |
Drives: 2005 Scion xB Join Date: Nov 2006
Location: The Black Hills of South Dakota
Posts: 1,059
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Quote:
Question- Is +.5-2 MPG really hypermiling? Maybe call is Goodmiling. I think you need to double your mileage before the word hyper can be correctly used. |
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04-13-2007, 05:06 PM | #35 | |
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Quote:
Certainly makes me smile |
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04-13-2007, 05:26 PM | #36 |
Steals terrorist's lunch
Drives: 2007 Yaris Liftback Join Date: Mar 2007
Location: Reno, Nevada, USA
Posts: 1,299
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The term "hypermiling" refers to continually beating the EPA's combined estimate for your vehicle and can involve combining driving techniques with some changes to your vehicle (including tire pressure). Every additional change you make to your driving style and vehicle nets better MPG, and it all adds up.
The original combined EPA estimate for the Yaris is 37 MPG (it's only 32 under the cheesy new system). My last tank was 49.74 MPG (click my signature for more information) and I commute over a mountain 5 days a week. By the way, Peter, I'm not angry. Disappointed at the lack of understanding and exasperated with some of the attitudes perhaps, but not angry.
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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. |
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