Proper tire pressure
10-03-2005, 06:28 PM
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Proper tire pressure
I had purchased a 1999 Honda Civic with the standard tires. The owner's manual specified that the front tires are to be maintained at 30 psi and the rear tires at 29 psi. Last week, I had my car in for routine maintenance, and when I got it back, I noticed that the tires were inflated to between 34 and 36 psi. When I questioned the service manager about this, he told me that peak performance is obtained by maintaining tire pressure in the range of 32-34 psi. Should I go by the owner's manual or trust the service manager?
10-03-2005, 07:52 PM
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Re: Proper tire pressure (stanleykorn)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stanleykorn »</TD></TR><TR><TD CLASS="quote">I had purchased a 1999 Honda Civic with the standard tires. The owner's manual specified that the front tires are to be maintained at 30 psi and the rear tires at 29 psi. Last week, I had my car in for routine maintenance, and when I got it back, I noticed that the tires were inflated to between 34 and 36 psi. When I questioned the service manager about this, he told me that peak performance is obtained by maintaining tire pressure in the range of 32-34 psi. Should I go by the owner's manual or trust the service manager?</TD></TR></TABLE>
i work at a dealership and we put inbetween 32-34 Psi.. No More Then 35 Psi. And No Lower Then 31.. Keep it At 32 Though.. U Dont Want Too Much Air.. Or To Little
i work at a dealership and we put inbetween 32-34 Psi.. No More Then 35 Psi. And No Lower Then 31.. Keep it At 32 Though.. U Dont Want Too Much Air.. Or To Little
10-03-2005, 08:20 PM
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Re: Proper tire pressure (stanleykorn)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by stanleykorn »</TD></TR><TR><TD CLASS="quote">I had purchased a 1999 Honda Civic with the standard tires. The owner's manual specified that the front tires are to be maintained at 30 psi and the rear tires at 29 psi. Last week, I had my car in for routine maintenance, and when I got it back, I noticed that the tires were inflated to between 34 and 36 psi. When I questioned the service manager about this, he told me that peak performance is obtained by maintaining tire pressure in the range of 32-34 psi. Should I go by the owner's manual or trust the service manager?</TD></TR></TABLE>
Go by the owner's manual.
You can adjust the pressures you run based on experience. For example, tires that wear more in the middle than the edges (both edges) are typically a sign of overinflation, and those that wear more along both edges than the middle are typically a sign of underinflation. But the best place to start out, before you make your adjustments, are the recommendations in the owner's manual.
Incidentally, dealer service departments often have recommendations that are the same thing for all cars they service, even though the car manufacturer may have different recommendations for one of their models than another one. I've seen dealers have "recommended" 30K/60K/etc maintenance schedules that differ from those in the manual, as well as recommend different oil viscosities, etc. It may not be deliberate incompetence so much as trying to make their own life easier by not having to keep track of recommendations that vary from one model to another.
Stick with the advice in the owner's manual...
Go by the owner's manual.
You can adjust the pressures you run based on experience. For example, tires that wear more in the middle than the edges (both edges) are typically a sign of overinflation, and those that wear more along both edges than the middle are typically a sign of underinflation. But the best place to start out, before you make your adjustments, are the recommendations in the owner's manual.
Incidentally, dealer service departments often have recommendations that are the same thing for all cars they service, even though the car manufacturer may have different recommendations for one of their models than another one. I've seen dealers have "recommended" 30K/60K/etc maintenance schedules that differ from those in the manual, as well as recommend different oil viscosities, etc. It may not be deliberate incompetence so much as trying to make their own life easier by not having to keep track of recommendations that vary from one model to another.
Stick with the advice in the owner's manual...
10-04-2005, 02:32 PM
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Re: Proper tire pressure (stanleykorn)
I ran my stock Michelin XGT V4s at the specified pressure and they wore the outsides. Upped the pressure to 43/38 for auto-x use, left them that way for the street afterwards, and was rewarded with much better turn in, a firmer steering feel, less wandering on the freeway, and better mileage (seriously). No clue how much total traction I had to give up with that much pressure though...
As a general rule, it should be fine to run the tires with a little more pressure than the factory recommends, as the specification is a compromise between tire life, ride quality, traction, etc... Pick a pressure based on how you use the car and what you want from the tires.
As a general rule, it should be fine to run the tires with a little more pressure than the factory recommends, as the specification is a compromise between tire life, ride quality, traction, etc... Pick a pressure based on how you use the car and what you want from the tires.
10-04-2005, 08:32 PM
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Re: Proper tire pressure (TunerN00b)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TunerN00b »</TD></TR><TR><TD CLASS="quote">As a general rule, it should be fine to run the tires with a little more pressure than the factory recommends</TD></TR></TABLE>
Not necessarily. I find that if I run pressures even 1-2 psi more than Honda's recommendations for my Integra Type R, the stock tires wear more in the middle of the tread than along the edges - classic signs of overinflation.
The owner's manual is a good starting point, better than just taking a wild-*** guess. If you find that you want to adjust from there, that's fine, but that's where I recommend starting.
Not necessarily. I find that if I run pressures even 1-2 psi more than Honda's recommendations for my Integra Type R, the stock tires wear more in the middle of the tread than along the edges - classic signs of overinflation.
The owner's manual is a good starting point, better than just taking a wild-*** guess. If you find that you want to adjust from there, that's fine, but that's where I recommend starting.
10-11-2005, 12:49 PM
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Re: Proper tire pressure (stanleykorn)
Run your Tire Psi at the recommended standard. Other whys you will learn the consequence of disobeying. Go 32Psi if that is recommended from the factory. 
10-12-2005, 01:57 AM
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Re: Proper tire pressure (nsxtasy)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nsxtasy »</TD></TR><TR><TD CLASS="quote">Not necessarily. I find that if I run pressures even 1-2 psi more than Honda's recommendations for my Integra Type R, the stock tires wear more in the middle of the tread than along the edges - classic signs of overinflation.
The owner's manual is a good starting point, better than just taking a wild-*** guess. If you find that you want to adjust from there, that's fine, but that's where I recommend starting.</TD></TR></TABLE>
Ok, this advice is better than mine.
The owner's manual is a good starting point, better than just taking a wild-*** guess. If you find that you want to adjust from there, that's fine, but that's where I recommend starting.</TD></TR></TABLE>
Ok, this advice is better than mine.
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