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post #1 of 30 Old 06-30-2011, 01:50 PM Thread Starter
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Tires(psi)

The manual says 32 upfront and 29 in the back but they look flat and just had a nail get stuck in new tires(michelins pilots). The mechanic told me between 32-35 on all tires so I filled the front with 35 and 32 in the back and seems to ride smoother.

Im getting ready to do a road trip for 6 hours and just wanted to know the best pressure to set the tires on. Just me and my girl and 2 big luggage.

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post #2 of 30 Old 06-30-2011, 02:15 PM
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We got a similar thread in the 8G section. Honda said 32. Most guys seem to go 35. I know one is not suppose to go by looks. But 32 (in my case) just don't feel right too. I guess Honda has to take the safe middle because some owners may live in a more harsh condition on the tires.

I used to own a 7G 2006 Accord. I normally go 33-34 all around. IIRC.

With that said, I would go the manufacture numbers (or no more than +1 PSI) if you are going to take a 6hr road trip. I assume it's hwy and at a fast speed. Tires do expand, so I rather stay in or very close to OEM ratings.


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post #3 of 30 Old 06-30-2011, 05:42 PM
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I go by tire manufacture not Honda. Every tire is different, and will handle load differently. I run 40psi all around, (51 psi is Max) No issues.


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post #4 of 30 Old 06-30-2011, 08:32 PM
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For a long time I went with OEM numbers. My tires looked a little flat at those PSI's also. I decided to go 35 in front and 33 in rear. I can tell you the gas mileage was a bit better and it didn't seem to effect the ride comfort. For long trips though I would go a little closer to the OEM numbers as well.

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post #5 of 30 Old 07-01-2011, 05:26 AM
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OEM numbers will only lead to faster tire wear and lower MPG. My tire has a max of 44 and I run 42-44 and still get a smooth ride. 26k miles later and they honestly look like ~10% tread is gone.
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post #6 of 30 Old 07-01-2011, 10:00 AM
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Quote:
Originally Posted by mobiless2 View Post
I go by tire manufacture not Honda. Every tire is different, and will handle load differently. I run 40psi all around, (51 psi is Max) No issues.
That works for the Accord, and I've done it in the past on my Civic.

But that statement is not a good guide to follow because the same tire could be used on another car that is much lighter or heavier.

Yes, it will be fine on a Toyota Camry or Ford Fusion. The cars are similar in weight and driving characteristics.

I don't think any truck or SUV uses the same tires. So in practice, it can be ok.

But we never know if there is a tire application that goes on a passenger car, truck, trailer, etc. Or even passenger cars of a different weight.

Just want to point it out.

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post #7 of 30 Old 07-02-2011, 12:47 PM
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I run 37 in the front, 35 in the rear. On a 600 mile road trip this week driving 55-75 MPH and A/C blasting cold the entire way I got 33.1 MPG on my 2004 EX V6 coupe. Good numbers considering EPA MPG is 30MPG max!!
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post #8 of 30 Old 07-02-2011, 03:52 PM
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Quote:
Originally Posted by Mike W View Post
OEM numbers will only lead to faster tire wear and lower MPG. My tire has a max of 44 and I run 42-44 and still get a smooth ride. 26k miles later and they honestly look like ~10% tread is gone.
I disagree. I run recommended pressures and I got 48000 out of the original equipment Michelins and average 24 mpg mixed driving with my V6.
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post #9 of 30 Old 07-02-2011, 09:39 PM
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Knale looks like you just confirmed Mike W's statement.

With my set of Sumitomos at 37-40 PSI many drivers have gotten 75-100K miles on these tires, and I am averaging 28 MPG mixed driving, with 33/35 MPG highway at 37PSI in my V6
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post #10 of 30 Old 07-03-2011, 05:23 AM
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Wouldn't over inflating your tires cause them to wear more in the middle of the tread? I go 2-3 lbs over, to allow for leakage, but not 12 lbs over. 44 lbs would be too much, IMO.

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post #11 of 30 Old 07-03-2011, 07:38 AM
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Quote:
Originally Posted by 2 Amigos View Post
Knale looks like you just confirmed Mike W's statement.

With my set of Sumitomos at 37-40 PSI many drivers have gotten 75-100K miles on these tires, and I am averaging 28 MPG mixed driving, with 33/35 MPG highway at 37PSI in my V6
Haha, he sure did!

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Wouldn't over inflating your tires cause them to wear more in the middle of the tread? I go 2-3 lbs over, to allow for leakage, but not 12 lbs over. 44 lbs would be too much, IMO.
And you've got to realize that you're not going 12psi over at 44psi...look at what is on your sidewall, not on the door sticker. And like others and myself said before, running them at max sidewall pressure actually gets you a lot miles out of your tires.
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post #12 of 30 Old 07-03-2011, 07:48 AM
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just refill the air in my tires, not following the Honda Spec, but up to 35-36psi.

hope to get better ride comfort and fuel economy.

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post #13 of 30 Old 07-03-2011, 08:13 AM
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Quote:
Originally Posted by BLCKFLSH View Post
Wouldn't over inflating your tires cause them to wear more in the middle of the tread? I go 2-3 lbs over, to allow for leakage, but not 12 lbs over. 44 lbs would be too much, IMO.
I agree with you. A coule pounds over, helps keep you above being low, helps a little with sidewall Roll, helps a little with Fuel economy but is absolutely safe. Pushing the pressure near MAX is unsafe. I think Max is Max. If you are near Max at 70 degrees and you drive down the highwaay at 100 degrees, your tires will be OVER max.

For those of you that remember the 80's, Ford got in trouble because they were telling poeple that owned Rollovers that proper inflation was something like 26 or 28 PSI, then you let that dip a little to 24 or so PSI and the tires were tearing themselves up.
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post #14 of 30 Old 07-03-2011, 08:28 AM
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Quote:
Originally Posted by jjwink View Post
I agree with you. A coule pounds over, helps keep you above being low, helps a little with sidewall Roll, helps a little with Fuel economy but is absolutely safe. Pushing the pressure near MAX is unsafe. I think Max is Max. If you are near Max at 70 degrees and you drive down the highwaay at 100 degrees, your tires will be OVER max.

For those of you that remember the 80's, Ford got in trouble because they were telling poeple that owned Rollovers that proper inflation was something like 26 or 28 PSI, then you let that dip a little to 24 or so PSI and the tires were tearing themselves up.
Yeah, you don't want too much in the summer time, but you guys think what you want about the max sidewall numbers. I drive 600+ miles each week with them at 44 psi and they love it! Every 5k miles the tire shop keeps asking "Are you sure you're driving 5k miles between rotations?"
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post #15 of 30 Old 07-03-2011, 08:57 AM
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A few of you are neglecting what Pounds per Square Inch means. At 29 PSI, you're putting 29 pounds of pressure on each square inch of rubber. Thus, if you have a massive car, the pressure on the tire is the same, the only difference is that the surface area touching the road is increased (thus increasing friction and heat). At 44 PSI, you reduce the amount of tire touching the road; reducing friction, but perhaps causing un-even wear.

Note: Even if the air pressure is the same, if you over-load the tire and physically stress the sidewall you can do some serious damage.


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