BeWare of Inflation ? WoW
#1
08-16-2009, 06:23 AM
BeWare of Inflation ? WoW
All right, now, lots of you, 80 percent or more of you are driving on under-inflated tires. Why, Oh Why R U doing that ? 
Please post what PSI you are running in your tires ? Please post the size of your tire...
MotorWeek
Beware Of Inflation
Pat Goss
Unfortunately many drivers don't pay a whole lot of attention to their tires, and that means that they could be riding around in a dangerous situation. You see, tires are our only connection between the car and the road, and if they aren't properly maintained - and that includes tire pressure, which is one of the most important things that you can do - you could be driving very dangerously.
Now, the old test of looking at the tire to see if it looks under inflated: no, that doesn't cut it anymore. You actually have to measure the pressure, at least once a month. You need to get your tire-pressure gauge out and check the pressure when the tires are cold.
But what is proper pressure? Well it's not what's on the side of the tire in most cases, and it's not some generic setting. Actually, the proper tire pressure setting comes from a decal that's typically inside the driver's door. With some cars it may be in the glove box or console, and on others it'll be inside the fuel filler door. Whatever, you adjust the pressure to the manufacturers specification. That's what gives you the safest car. Now if you want to get a really good pressure setting, this is called a Cyclops. It has two hoses on it so you adjust the pressure either up or down in two tires at the same time and it gives you an exact setting. Pretty neat tool.
All right, now, lots of you, 80 percent or more of you are driving on under-inflated tires. Now if you look at this tire right here, look at the tread, it looks like brand new. You wouldn't think there was anything wrong with it, yet if you go inside it we have hands-full of rubber that has disintegrated from the inside of the tire. This is from driving just a few miles with it about ten-pounds under inflated like this tire is right now, and had it gone a little bit further, well this is what we would have had, and believe me this is not fun.
What type of tire do you have on your Monte Carlo ?
How many miles do you get on a set of tires ?
Do you like the tire you have ? If not, what is your next tire that you will purchase...Thanks for posting.....Peace/Out/`Space
Please post what PSI you are running in your tires ? Please post the size of your tire...
MotorWeek
Beware Of Inflation
Pat Goss
Unfortunately many drivers don't pay a whole lot of attention to their tires, and that means that they could be riding around in a dangerous situation. You see, tires are our only connection between the car and the road, and if they aren't properly maintained - and that includes tire pressure, which is one of the most important things that you can do - you could be driving very dangerously. Now, the old test of looking at the tire to see if it looks under inflated: no, that doesn't cut it anymore. You actually have to measure the pressure, at least once a month. You need to get your tire-pressure gauge out and check the pressure when the tires are cold.
But what is proper pressure? Well it's not what's on the side of the tire in most cases, and it's not some generic setting. Actually, the proper tire pressure setting comes from a decal that's typically inside the driver's door. With some cars it may be in the glove box or console, and on others it'll be inside the fuel filler door. Whatever, you adjust the pressure to the manufacturers specification. That's what gives you the safest car. Now if you want to get a really good pressure setting, this is called a Cyclops. It has two hoses on it so you adjust the pressure either up or down in two tires at the same time and it gives you an exact setting. Pretty neat tool. All right, now, lots of you, 80 percent or more of you are driving on under-inflated tires. Now if you look at this tire right here, look at the tread, it looks like brand new. You wouldn't think there was anything wrong with it, yet if you go inside it we have hands-full of rubber that has disintegrated from the inside of the tire. This is from driving just a few miles with it about ten-pounds under inflated like this tire is right now, and had it gone a little bit further, well this is what we would have had, and believe me this is not fun. What type of tire do you have on your Monte Carlo ?
How many miles do you get on a set of tires ?
Do you like the tire you have ? If not, what is your next tire that you will purchase...Thanks for posting.....Peace/Out/`Space
#2
08-16-2009, 06:33 AM
Tires: Ratings of Sources
Total of 16 Sources
In this reportFor an explanation of how we rank reviews, see our ratings criteria page.
1. ConsumerReports.org
Details/Subscribe
All-Season Tires
by Editors of Consumer Reports
Credibility Rating{?}
Our Assessment Consumer Reports subjects 15 standard all-season tires to its rigorous battery of tests. A chart ranks the tires from best to worst on 10 different measures, such as snow traction and tread life. The tests… show massive differences between the best and worst tires, with some "all-season" tires proving to be poor performers on ice and snow. Although its detailed, unbiased tests make Consumer Reports the best source we found, its tire coverage could use an update; some of the recommended tires have been discontinued.
expand
collapse
2. ConsumerReports.org
Details/Subscribe
Performance All-Season Tires
by Editors of Consumer Reports
Credibility Rating{?}
Our Assessment High-performance all-season tires, once found mostly on luxury or sports cars, now come standard on everyday cars like the Toyota Camry, say editors at Consumer Reports. Performance tires handle and grip… better than standard all-season tires, but they have traditionally worn out faster. Consumer Reports' testers drive 31 H- and V-rated performance all-season tires for 16,000 miles each, to find out just how quickly they wear out. Testers also evaluate the tires' braking, traction and more on dry, wet, snowy and icy roads.
expand
collapse
3. ConsumerReports.org
Details/Subscribe
Ultra-high-performance
by Editors of Consumer Reports
Credibility Rating{?}
Our Assessment Z-rated ultra-high-performance tires appeal to car owners looking for the best wet and dry handling and cornering, but these benefits come at the expense of ride quality and tread life. Many of these tires… are plus-size tires, so you may also need a larger wheel before upgrading. Consumer Reports rates 36 ultra-high-performance tires - some all-season tires, and some meant only for summer. Ratings are based on performance in both wet and dry conditions, plus ice and snow handling for all-season versions. Noise, ride quality, tread life and rolling resistance are also figured into the ratings.
expand
collapse
4. Automobile Protection Association
Summer Tires Ratings
by Editors of APA.ca
Credibility Rating{?}
Our Assessment This Canadian nonprofit is dedicated to protecting consumer interests in the marketplace. It is funded by individual consumers' membership fees, with no subsidies from the automobile, oil or insurance… industries. APA rates three types of non-winter car tires: all-season (both standard and touring styles), performance and high-performance. Reviews note the tires' price levels, performance, treadwear and noise levels. None of the 39 tires are given a numeric rating, but the brief reviews note each tire's pros, cons and overall quality.
expand
collapse
5. Tire Rack
Testing Program
by Editors of The Tire Rack
Credibility Rating{?}
Our Assessment The Tire Rack is a retail site whose staff also tests and reviews tires. Although the editors' evaluations are clear, logical and easy to read, tests are run in groups of three or four tires, and there's no… ultimate ranking system. This makes it difficult to determine which tires are ultimately best in class. Comparison tests are conducted a couple of times a year, so the overall sampling size of tested tires is small compared to other reviewers. However, The Tire Rack is usually one of the first sources to conduct expert tests of new tires on the market.
expand
collapse
6. Tire Rack
Tire Survey
by Contributors to The Tire Rack
Credibility Rating{?}
Our Assessment In addition to doing its own testing as described above, The Tire Rack has collected nearly 140,000 consumer surveys on 416 different tire models since 1997. The scores are presented in easy-to-read charts… that rank currently available tires in 13 categories (high-performance summer, all-season and so forth). Consumers report how many miles they've driven each tire, and on what type of car. They score the tires on 12 measures (ice grip, hydroplaning, etc.). Users can also click and read narrative consumer reviews for each tire -- usually a number of reviews, including some that are quite thorough and thoughtful.
expand
collapse
7. National Highway Traffic Safety Administration
Tire Ratings
by Editors of NHTSA
Credibility Rating{?}
Our Assessment NHTSA requires manufacturers to test their tires for treadwear, traction and heat resistance, and to label the tires with these ratings. Consumers can look up tires in the ratings on this website, either by brand or by rating. NHTSA offers thorough explanations of the ratings, but it does not recommend any tire over another. Defect and recall alerts are also posted here.
8. Which? magazine
Feb. 28, 2008 Details/Subscribe
Car Tyres
by Editors of Which? magazine
Credibility Rating{?}
Our Assessment Which? magazine is a U.K.-based publication that rivals Consumer Reports in thoroughness. In this review, editors test 97 premium and economy car tires for wet grip, dry grip, wear and noise. Twenty-five models in various sizes are named Best Buys, including six that are available in the U.S. from Michelin, Vredestein, Bridgestone, Continental and Pirelli.
9. Car and Driver
Dec. 2005 Details/Subscribe
Tire Test: The Quick and the Tread
by Larry Webster
Credibility Rating{?}
Our Assessment Car and Driver carried out this test of 11 high-performance tires a few years ago, but it's still useful -- all six of the top picks are still on the market. Car and Driver used The Tire Rack's BMW 325i test car and test track in three days of wet and dry testing. The Goodyear Eagle F1 GS-D3 is the best performer in wet testing and rates second in dry conditions.
10. Epinions.com
Tire Reviews
by Contributors to Epinions.com
Credibility Rating{?}
Our Assessment Nearly 400 tire models have accumulated reviews from consumers who post at Epinions.com. Several tires have just a handful of reviews, and some reviews are dated. Different kinds of tires are mixed together… - snow tires, big off-road truck tires, standard car tires and a lot of discontinued tires -- but if you have a specific tire in mind, you can do a keyword search. Three currently available car tires have achieved high ratings with at least 10 reviews: the Kumho 716 Ecsta HP4 BSW, Continental ContiExtremeContact and Goodyear Assurance TripleTred.
expand
collapse
11. CarReview.com
Tires Top Picks
by Contributors to CarReview.com
Credibility Rating{?}
Our Assessment This site collects user reviews of tires, with 486 models listed. Many of those have no reviews posted, though. Editors of the site have chosen six Top Picks -- tires that have scored at least four out of five points with between five and 73 users reviewing them. Three of these are currently available passenger-car tires: the BFGoodrich g-Force T/A KDW, Nitto NT-555R and Dunlop SP Sport 5000.
12. The Truth About Cars
Nov. 29, 2007
General Tire Exclaim UHP Review
by Michael Posner
Credibility Rating{?}
Our Assessment This small auto-review site bills its content as "no-holds-barred, take-no-prisoners automotive reviews and industry-related editorials." In this single-tire review, tester Michael Posner decides to buy the… General Exclaim UHP performance tire for his Audi because it is a favorite among consumers at The Tire Rack - and because it costs quite a bit less than a top-rated tire, the Michelin Pilot Exalto PE2. Posner tests the Exclaim UHP on wet and dry roads, and concludes it is a performance-tire bargain.
expand
collapse
13. The Truth About Cars
Jan. 31, 2008
NITTO Invo Ultra-High Performance Tire Review
by Michael Posner
Credibility Rating{?}
Our Assessment On the advice of his longtime "tire guy," Ernie, reviewer Michael Posner chooses the Nitto Invo ultra-high-performance tire for his BMW Roadster on both road and track. After 5,000 miles, Posner explains why the tires have been well worth the price.
14. Canadian Driver
Apr. 17, 2007
Evaluating Pirelli's New High Performance P Zero Tire
by Tony Whitney
Credibility Rating{?}
Our Assessment This article covers only one tire, the Pirelli P Zero, but testing is thorough and detailed. The P Zero has become "the" performance tire over the years, reviewer Tony Whitney points out, and Pirelli's new improved version carries on the tradition in a racetrack test with Porsches, Ferraris and Lamborghinis.
15. Canadian Driver
June 4, 2007
Tire Test: The New Michelin MXV4
by James Bergeron
Credibility Rating{?}
Our Assessment Performance touring tires now come standard on sedans from BMW to Hyundai, reviewer James Bergeron notes in this single-tire review. When it comes time to replace them, sticking with the same type of tire… will keep your car performing the way you like. The Michelin Primacy MXV4 is an excellent value in a replacement performance touring tire, Bergeron concludes, after a test in which the MXV4 confidently handles both wet and dry roads.
expand
collapse
16. PopularMechanics.com
Nov. 20, 2007 Details/Subscribe
Dunlop Ultra-Performance Tire Test Drive: Burnin' Rubber With Bimmers
by Mike Allen
Credibility Rating{?}
Our Assessment Popular Mechanics blogger Mike Allen tests three Dunlop performance tires -- the SP Sport Maxx GT, Direzza Sport Z1 and SP Sport Signature -- at the Las Vegas Motor Speedway. He doesn't pick a favorite, but his descriptions of the tires' respective strengths are helpful for shoppers considering one of these tires.
Total of 16 Sources
In this reportFor an explanation of how we rank reviews, see our ratings criteria page.
1. ConsumerReports.org
Details/Subscribe
All-Season Tires
by Editors of Consumer Reports
Credibility Rating{?}Our Assessment Consumer Reports subjects 15 standard all-season tires to its rigorous battery of tests. A chart ranks the tires from best to worst on 10 different measures, such as snow traction and tread life. The tests… show massive differences between the best and worst tires, with some "all-season" tires proving to be poor performers on ice and snow. Although its detailed, unbiased tests make Consumer Reports the best source we found, its tire coverage could use an update; some of the recommended tires have been discontinued.
expand
collapse
2. ConsumerReports.org
Details/Subscribe
Performance All-Season Tires
by Editors of Consumer Reports
Credibility Rating{?}Our Assessment High-performance all-season tires, once found mostly on luxury or sports cars, now come standard on everyday cars like the Toyota Camry, say editors at Consumer Reports. Performance tires handle and grip… better than standard all-season tires, but they have traditionally worn out faster. Consumer Reports' testers drive 31 H- and V-rated performance all-season tires for 16,000 miles each, to find out just how quickly they wear out. Testers also evaluate the tires' braking, traction and more on dry, wet, snowy and icy roads.
expand
collapse
3. ConsumerReports.org
Details/Subscribe
Ultra-high-performance
by Editors of Consumer Reports
Credibility Rating{?}Our Assessment Z-rated ultra-high-performance tires appeal to car owners looking for the best wet and dry handling and cornering, but these benefits come at the expense of ride quality and tread life. Many of these tires… are plus-size tires, so you may also need a larger wheel before upgrading. Consumer Reports rates 36 ultra-high-performance tires - some all-season tires, and some meant only for summer. Ratings are based on performance in both wet and dry conditions, plus ice and snow handling for all-season versions. Noise, ride quality, tread life and rolling resistance are also figured into the ratings.
expand
collapse
4. Automobile Protection Association
Summer Tires Ratings
by Editors of APA.ca
Credibility Rating{?}Our Assessment This Canadian nonprofit is dedicated to protecting consumer interests in the marketplace. It is funded by individual consumers' membership fees, with no subsidies from the automobile, oil or insurance… industries. APA rates three types of non-winter car tires: all-season (both standard and touring styles), performance and high-performance. Reviews note the tires' price levels, performance, treadwear and noise levels. None of the 39 tires are given a numeric rating, but the brief reviews note each tire's pros, cons and overall quality.
expand
collapse
5. Tire Rack
Testing Program
by Editors of The Tire Rack
Credibility Rating{?}Our Assessment The Tire Rack is a retail site whose staff also tests and reviews tires. Although the editors' evaluations are clear, logical and easy to read, tests are run in groups of three or four tires, and there's no… ultimate ranking system. This makes it difficult to determine which tires are ultimately best in class. Comparison tests are conducted a couple of times a year, so the overall sampling size of tested tires is small compared to other reviewers. However, The Tire Rack is usually one of the first sources to conduct expert tests of new tires on the market.
expand
collapse
6. Tire Rack
Tire Survey
by Contributors to The Tire Rack
Credibility Rating{?}Our Assessment In addition to doing its own testing as described above, The Tire Rack has collected nearly 140,000 consumer surveys on 416 different tire models since 1997. The scores are presented in easy-to-read charts… that rank currently available tires in 13 categories (high-performance summer, all-season and so forth). Consumers report how many miles they've driven each tire, and on what type of car. They score the tires on 12 measures (ice grip, hydroplaning, etc.). Users can also click and read narrative consumer reviews for each tire -- usually a number of reviews, including some that are quite thorough and thoughtful.
expand
collapse
7. National Highway Traffic Safety Administration
Tire Ratings
by Editors of NHTSA
Credibility Rating{?}Our Assessment NHTSA requires manufacturers to test their tires for treadwear, traction and heat resistance, and to label the tires with these ratings. Consumers can look up tires in the ratings on this website, either by brand or by rating. NHTSA offers thorough explanations of the ratings, but it does not recommend any tire over another. Defect and recall alerts are also posted here.
8. Which? magazine
Feb. 28, 2008 Details/Subscribe
Car Tyres
by Editors of Which? magazine
Credibility Rating{?}Our Assessment Which? magazine is a U.K.-based publication that rivals Consumer Reports in thoroughness. In this review, editors test 97 premium and economy car tires for wet grip, dry grip, wear and noise. Twenty-five models in various sizes are named Best Buys, including six that are available in the U.S. from Michelin, Vredestein, Bridgestone, Continental and Pirelli.
9. Car and Driver
Dec. 2005 Details/Subscribe
Tire Test: The Quick and the Tread
by Larry Webster
Credibility Rating{?}Our Assessment Car and Driver carried out this test of 11 high-performance tires a few years ago, but it's still useful -- all six of the top picks are still on the market. Car and Driver used The Tire Rack's BMW 325i test car and test track in three days of wet and dry testing. The Goodyear Eagle F1 GS-D3 is the best performer in wet testing and rates second in dry conditions.
10. Epinions.com
Tire Reviews
by Contributors to Epinions.com
Credibility Rating{?}Our Assessment Nearly 400 tire models have accumulated reviews from consumers who post at Epinions.com. Several tires have just a handful of reviews, and some reviews are dated. Different kinds of tires are mixed together… - snow tires, big off-road truck tires, standard car tires and a lot of discontinued tires -- but if you have a specific tire in mind, you can do a keyword search. Three currently available car tires have achieved high ratings with at least 10 reviews: the Kumho 716 Ecsta HP4 BSW, Continental ContiExtremeContact and Goodyear Assurance TripleTred.
expand
collapse
11. CarReview.com
Tires Top Picks
by Contributors to CarReview.com
Credibility Rating{?}Our Assessment This site collects user reviews of tires, with 486 models listed. Many of those have no reviews posted, though. Editors of the site have chosen six Top Picks -- tires that have scored at least four out of five points with between five and 73 users reviewing them. Three of these are currently available passenger-car tires: the BFGoodrich g-Force T/A KDW, Nitto NT-555R and Dunlop SP Sport 5000.
12. The Truth About Cars
Nov. 29, 2007
General Tire Exclaim UHP Review
by Michael Posner
Credibility Rating{?}Our Assessment This small auto-review site bills its content as "no-holds-barred, take-no-prisoners automotive reviews and industry-related editorials." In this single-tire review, tester Michael Posner decides to buy the… General Exclaim UHP performance tire for his Audi because it is a favorite among consumers at The Tire Rack - and because it costs quite a bit less than a top-rated tire, the Michelin Pilot Exalto PE2. Posner tests the Exclaim UHP on wet and dry roads, and concludes it is a performance-tire bargain.
expand
collapse
13. The Truth About Cars
Jan. 31, 2008
NITTO Invo Ultra-High Performance Tire Review
by Michael Posner
Credibility Rating{?}Our Assessment On the advice of his longtime "tire guy," Ernie, reviewer Michael Posner chooses the Nitto Invo ultra-high-performance tire for his BMW Roadster on both road and track. After 5,000 miles, Posner explains why the tires have been well worth the price.
14. Canadian Driver
Apr. 17, 2007
Evaluating Pirelli's New High Performance P Zero Tire
by Tony Whitney
Credibility Rating{?}Our Assessment This article covers only one tire, the Pirelli P Zero, but testing is thorough and detailed. The P Zero has become "the" performance tire over the years, reviewer Tony Whitney points out, and Pirelli's new improved version carries on the tradition in a racetrack test with Porsches, Ferraris and Lamborghinis.
15. Canadian Driver
June 4, 2007
Tire Test: The New Michelin MXV4
by James Bergeron
Credibility Rating{?}Our Assessment Performance touring tires now come standard on sedans from BMW to Hyundai, reviewer James Bergeron notes in this single-tire review. When it comes time to replace them, sticking with the same type of tire… will keep your car performing the way you like. The Michelin Primacy MXV4 is an excellent value in a replacement performance touring tire, Bergeron concludes, after a test in which the MXV4 confidently handles both wet and dry roads.
expand
collapse
16. PopularMechanics.com
Nov. 20, 2007 Details/Subscribe
Dunlop Ultra-Performance Tire Test Drive: Burnin' Rubber With Bimmers
by Mike Allen
Credibility Rating{?}Our Assessment Popular Mechanics blogger Mike Allen tests three Dunlop performance tires -- the SP Sport Maxx GT, Direzza Sport Z1 and SP Sport Signature -- at the Las Vegas Motor Speedway. He doesn't pick a favorite, but his descriptions of the tires' respective strengths are helpful for shoppers considering one of these tires.
Last edited by Space; 08-16-2009 at 06:37 AM.
#4
08-16-2009, 12:03 PM
Hi Brock,
I think that you are OverInflating your tires.
Isn't your factory rec: 32 PSI's ?
Check out below on Proper Inflation.
MCF Member's, what is your PSI ?
I think that you are OverInflating your tires.
Isn't your factory rec: 32 PSI's ?
Check out below on Proper Inflation.
MCF Member's, what is your PSI ?
"Tires are the only thing that contacts the Road, unless
they Blow Out & then it could be U"
Oh `No....
I better check my tire air pressures once a week
4-Sure..Tires R Expensive....
This has been a friendly reminder 2 Self & Others
they Blow Out & then it could be U"
Oh `No....I better check my tire air pressures once a week
4-Sure..Tires R Expensive.... This has been a friendly reminder 2 Self & Others
Good Infor Below
Air Pressure - Correct, Underinflated and Overinflated
Advantages of Correct Tire Inflation
Maintaining correct tire inflation pressure helps optimize tire performance and fuel economy. Correct tire inflation pressure allows drivers to experience tire comfort, durability and performance designed to match the needs of their vehicles. Tire deflection (the tread and sidewall flexing where the tread comes into contact with the road) will remain as originally designed and excessive sidewall flexing and tread squirm will be avoided. Heat buildup will be managed and rolling resistance will be appropriate. Proper tire inflation pressure also stabilizes the tire's structure, blending the tire's responsiveness, traction and handling.
Can you easily identify which tire is 30% underinflated? Here is what they would look like in the morning parked in your garage. (Roll your mouse across the pictures to find out if you were right.)
Tough to tell; isn't it? Tire pressure must be checked with a quality air gauge as the inflation pressure cannot be accurately estimated through visual inspection.
Advantages of Correct Tire Inflation
Maintaining correct tire inflation pressure helps optimize tire performance and fuel economy. Correct tire inflation pressure allows drivers to experience tire comfort, durability and performance designed to match the needs of their vehicles. Tire deflection (the tread and sidewall flexing where the tread comes into contact with the road) will remain as originally designed and excessive sidewall flexing and tread squirm will be avoided. Heat buildup will be managed and rolling resistance will be appropriate. Proper tire inflation pressure also stabilizes the tire's structure, blending the tire's responsiveness, traction and handling.
Can you easily identify which tire is 30% underinflated? Here is what they would look like in the morning parked in your garage. (Roll your mouse across the pictures to find out if you were right.)
Tough to tell; isn't it? Tire pressure must be checked with a quality air gauge as the inflation pressure cannot be accurately estimated through visual inspection.
Disadvantages of Underinflation
An underinflated tire can't maintain its shape and becomes flatter than intended while in contact with the road. If a vehicle's tires are underinflated by only 6 psi it could weaken the tire's internal structure and eventually lead to tire failure. Lower inflation pressures will allow more deflection as the tire rolls. This will build up more internal heat, increase rolling resistance (causing a reduction in fuel economy of up to 5%) and reduce the tire's tread life by as much as 25% while increasing the probability of irregular treadwear. Drivers would also find a noteworthy loss of steering precision and cornering stability. While 6 psi doesn't seem excessively low, it typically represents about 20% of a passenger car tire's recommended pressure.
Disadvantages of Overinflation
An overinflated tire is stiff and unyielding and the size of its footprint in contact with the road is reduced. If a vehicle's tires are overinflated by 6 psi, they could be damaged more easily when encountering potholes or debris in the road, as well as experience irregular tread wear. Higher inflated tires cannot isolate road irregularities as well causing the vehicle to ride harsher and transmit more noise into its interior. However, higher inflation pressures reduce rolling resistance slightly and typically provide a slight improvement in steering response and cornering stability. This is why participants who use street tires in autocrosses, track events and road races run higher than normal inflation pressures.
An underinflated tire can't maintain its shape and becomes flatter than intended while in contact with the road. If a vehicle's tires are underinflated by only 6 psi it could weaken the tire's internal structure and eventually lead to tire failure. Lower inflation pressures will allow more deflection as the tire rolls. This will build up more internal heat, increase rolling resistance (causing a reduction in fuel economy of up to 5%) and reduce the tire's tread life by as much as 25% while increasing the probability of irregular treadwear. Drivers would also find a noteworthy loss of steering precision and cornering stability. While 6 psi doesn't seem excessively low, it typically represents about 20% of a passenger car tire's recommended pressure.
Disadvantages of Overinflation
An overinflated tire is stiff and unyielding and the size of its footprint in contact with the road is reduced. If a vehicle's tires are overinflated by 6 psi, they could be damaged more easily when encountering potholes or debris in the road, as well as experience irregular tread wear. Higher inflated tires cannot isolate road irregularities as well causing the vehicle to ride harsher and transmit more noise into its interior. However, higher inflation pressures reduce rolling resistance slightly and typically provide a slight improvement in steering response and cornering stability. This is why participants who use street tires in autocrosses, track events and road races run higher than normal inflation pressures.
Last edited by Space; 08-16-2009 at 12:06 PM.
#5
09-03-2009, 01:42 PM
And that is where we make a mistake. Which factory? The car manufacturer or the tire manufacturer. How many of us still have the useless tires they put on the car at the factory? I use the tire manufacturer's recommendation. For my tires on the Monte it is 35psi.
A case in point, Ford Explorers and Firestone tires. The Ford recommended a lower tire pressure than the tire manufacturer. Many people ran their Firestone tires at the lower pressure (on purpose and/or by neglect). The increased friction and tire wear finally resulted in failure of many tires and fatal roll overs of the vehicles. I had the same tires on my Chev Z-71 and had no trouble with them. They were quiet and gripped well on pavement and dirt.
For me I'll pick the tire manufacturer's recommended tire pressure.
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