Last post on May 18, 2011 at 1:32 PM
You are in the Toyota Camry Hybrid
What is this discussion about?
Toyota Camry Hybrid, Tires, Wheels, Hybrid Cars, Sedan
#7 of 56 Re: What an awesome vehicle the 2007 TCH is... with great MPG.... [terry92270]
Oct 17, 2006 (9:06 am)
>>Not only can they, the often do.
I will quickly believe your assertion when you provide some documentation.
No doubt, significant tire over inflation is potentially dangerous. Still, the burden of proof would be on any insurer seeking to deny a claim based on over inflation.
The recommended inflation pressure is a compromise, depending on vehicle load, average speed, and road conditions. My '92 Camry, for instance, recommended 26 lbs for normal urban driving and 32 lbs for primarily freeway driving, or when the car was carrying more weight.
And in the most famous cases of tire failure--Ford Explorers--while tire under inflation was a significant cause of the failure, the tire maker and manufacturer received most of the blame, and liability.
I doubt tire over inflation of 2-3 lbs changes a car's handling characteristics enough to matter much, but I will be persuaded by any facts to the contrary.
#8 of 56 Re: What an awesome vehicle the 2007 TCH is... with great MPG.... [terry92270]
Oct 17, 2006 (2:34 pm)
I have 90,000 miles on a Ford Explorer. I did do research on the tires (afraid for my safety) and I found that Firestone and Ford compromised and determined that safe tire pressure would be 30 psig. I believe Ford wanted it lower and Firestone balked. My opinion is that the Ford had mnore to do with most wrecks than the tires, but that's just my experience and opinion. While underinflation can cause tire failure, high pressure (as little as 34 psig) on the 01 Ford Explorer I drive for work absolutely makes the car so twitchy that it's scary at interstate speeds.
Granted the TCH will not get twichy at 40 psig like an SUV. But the contact patch of the tire to road will be diminished and if you live in an area with hills and rain I would think twice before going to extreems on high tire pressure.
After 13,700 miles the difference in 39.5 mpg (what I get) and possibly 41 mpg (might get with overinflation_debatable) I would have saved less than $35. Not worth it.
#9 of 56 What an awesome vehicle the 2007 TCH is... with great MPG....
Oct 18, 2006 (5:38 am)
Ok, since I started the discussion under title "What an awesome vehicle the 2007 TCH is... with great MPG.... ", I take responsibility and have come to conclusion that the best way to care for the tires is to absolutely follow the vehicle's manufacturer suggested tire pressure. The reason of keeping my tires 3 psi above normal was actually more of an assurance that my TPMS is functioning correctly after the toyota dealership had 2 times to adjust/reprogram the 7 digit ID code (valve transmitter) into ECU (loooong story) and got distracted and let the uneven air pressure the dealership had put into my tires giving assurance to myself that the TPMS warning light is fixed... no more -- all my 4 tires are back to 33 psi and with the cold weather it will be down to 32 psi.
Btw, I have emphasized to follow the correct tire pressure under "Toyota Camry Hybrid Driving Tips & Tricks" discussion title in post# 67.
Also, after lowering the tire pressure I felt better handling of my 2007 TCH on the road and especially in the rain.... what a truly awesome vehicle the 2007 TCH is...
-- happy HYBRID TCH driving --
#10 of 56 Re: You guys keep believing that..... [terry92270]
Oct 18, 2006 (8:11 am)
When cars are transported, do you know what pressure the manufacturer puts in the cars before they are loaded into the trucks?
I'll give you a hint - it's above 90 psi.
#11 of 56 Re: You guys keep believing that..... [zodiac2004]
Oct 18, 2006 (9:44 am)
That has absolutely NOTHING to do with normal operation of a car, by a consumer, on roadways.
#12 of 56 Re: You guys keep believing that..... [zodiac2004]
Oct 18, 2006 (11:51 am)
"When cars are transported, do you know what pressure the manufacturer puts in the cars before they are loaded into the trucks?
I'll give you a hint - it's above 90 psi."
Would you care to guess how fast and how far the cars are diven at that PSI?
Hint - it's less than 5 MPH, for about 100 yards.
#13 of 56 Re: You guys keep believing that..... [stevedebi]
Oct 18, 2006 (2:00 pm)
Tires ARE overinflated for transport, to protect from tire "flat spots" and probably several other good reasons. I do not know where you get the information that the presure is set at 90 psi. I doubt that is accurate. Probably closser to 45 or 50. IMHO.
#14 of 56 Re: You guys keep believing that..... [acco20]
Oct 18, 2006 (2:29 pm)
"doubt that is accurate. Probably closser to 45 or 50. IMHO."
90 PSI isn't my number. I think it is 45 PSI. I was responding to a post...
#15 of 56 TPMS question
Oct 22, 2006 (12:19 pm)
Is anyone running without the TPMS system? If so can you reset the system (to "0") and keep the warning light off?
What actually happens if you run without the sensors.
I want to runs winter wheel / tire setup but I don't want to switch the TPMS's from wheel to wheel each season.
#16 of 56 Re: TPMS question [wvgasguy]
Dec 16, 2006 (5:53 am)
I'm glad you brought up the question.
I will probably look into doing the same thing next year.
On Pg 172 of the manual
"The system will be disabled in the following conditions"...
*If the tires not equipped with tire pressure warning valves and transmitters are used.
It appears that "When the condition becomes normal, the system will work properly.
For more info... contact the people at an online store, such as tirerack.com, and they should have an answer for you.