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Author Topic: Reminder, CHECK YOUR TIRE PRESSUE! MPG at stake! Back to Topics
ROKN20S

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Flint

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Message Posted: Jan 7, 2013 11:43:38 AM

Something to remember in the cold months.

A tire generally losses 1psi as each month passes.
Also, 1psi per 10degrees of temperature drop.

SOOOOOOOOooooooo. If your BRAND NEW TIRES you bought in the summer when it was 80degrees outside were filled to the correct psi (example 35psi)

Now it's 5months later and 30degrees outside. They could be 10psi lower WITHOUT LEAKS. The TMPS systems are for those people who do not check their tires.

LOW PSI in your tires = POOR GAS MPG!
can also lead to a blow out due to the tire building up unnecessary heat from running low.

Keep that in mind and go check your tires. I always run mine just a couple extra PSI to gain more MPG. :)

The tire maker has the MAXIMUM PSI written on the sidewall if you are unsure. Usually on Car tires is aroung 44psi.

So if your door jamb decal on your car says 32psi and the Tire says 44psi max.

You can safely get away with 36, 38 even 40 psi to gain a little more MPG. Also remember, the PSI increases as the tire warms up from driving, SO don't fill it to the max on a cold tire and it will exceed the Max rating and could damge the tire.

Hope this helps a few, more MPG or even one flat tire. Have a good week GasBuddies!
REPLIES (newest first) Post a Reply
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kellyoneal
Champion Author Louisville

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Message Posted: Apr 1, 2013 6:51:54 PM

I check them everyweek
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carinthuist
Champion Author San Francisco

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Message Posted: Apr 1, 2013 6:36:35 PM

check air in tires once a month
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DasAuto92
Champion Author Montreal

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Message Posted: Apr 1, 2013 2:03:45 PM

Titanic1985:THE MAXIMUM, but not for driving. When I worked in a garage that figure is for the safety of the tire installer to make sure the tire is securely fastened to the rim. Also, the recommendation of safely getting "...away with 36, 38 even 40 psi to gain a little more MPG" is ill advised.
.
I applaude you for your posting as i also go with the manufacturers recommendations not WHATS on the tire sidewall as some insist.
I did try to up my air pressure, but found my car giving a harsher ride.So i stay within the specs asscociated for my vehicles regardless of what tires are installed.
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russells350
Champion Author Montreal

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Message Posted: Apr 1, 2013 9:46:15 AM

no
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bluenvoy
Champion Author Nashville

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Message Posted: Apr 1, 2013 9:32:55 AM

Do it at least once a month.
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Titanic1985
Champion Author South Carolina

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Message Posted: Apr 1, 2013 9:31:52 AM

Good Morning ROKN202S,

This is a good topic for Gas Buddies since Spring is here and Summer is coming. I know your topic is based on "the cold months" and that can be monitored by the TPMS (Tire Pressure Monitor System) standard on all cars manufactured in the United States since September 1, 2007, but equally important is tire pressure during those hot days in the summer, especially in the South. The Gas Buddies who have posted are vigilant and informed of tire pressures (I've dealt with all but one on previous tire Topics). Unfortunately, you message is not reaching those who don't know what you are speaking of :-(.

I do wish you had stayed away from the maximum tire pressure issue and the recommendation of increased tire pressures. I am linking a document from tirerack.com to support what I'm saying which in the past has been controversial. The maximum tire pressure listed on the sidewall is exactly that, THE MAXIMUM, but not for driving. When I worked in a garage that figure is for the safety of the tire installer to make sure the tire is securely fastened to the rim. Also, the recommendation of safely getting "...away with 36, 38 even 40 psi to gain a little more MPG" is ill advised. During the summer months those cold pressures could easily go up by 3 to 5 PSI making your highest pressure 45 PSI. This is extremely dangerous and could result in ply separation and loss of control of the vehicle. MPGs ARE NOT WORTH LIVES! Adhere to the vehicle's recommended tire pressure shown on the driver's door post when the tires are cold. Also, placing that much air in a tire can cause it to crown and wear out the center treads. Here is that supporting document:

Tire Pressure Guidelines

Take care :-). MGY

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Dale Jr.
Champion Author Illinois

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Message Posted: Apr 1, 2013 9:20:36 AM

Ok
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DasAuto92
Champion Author Montreal

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Message Posted: Apr 1, 2013 12:15:41 AM

Just changed over winter tires to summer tires and pressure is up to par ..a big 10-4 buddy
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Bushmaster
Champion Author Ontario

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Message Posted: Mar 31, 2013 7:06:50 PM

i check mine once a week and they never lost any pressure thoughout winter
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WEPSMAN
Champion Author South Dakota

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Message Posted: Mar 31, 2013 6:02:30 PM

The vehicles recommended tire pressure is what you should use. That is for optimal vehicle performance. Putting too much air in the tires will give your vehicle a rougher ride. Could also affect cornering and braking.
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14smoke
Champion Author Birmingham

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Message Posted: Mar 30, 2013 10:11:38 PM

Check all the cars in the driveway at least once a month...good idea for everyone.
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Coco0828
Champion Author Dallas

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Message Posted: Mar 30, 2013 3:12:21 PM

thanks
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bluenvoy
Champion Author Nashville

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Message Posted: Jan 8, 2013 9:14:20 AM

Check mine every month unless I see something is not right. No real air loss on either of my vehicles.
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jes
Champion Author Pennsylvania

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Message Posted: Jan 8, 2013 5:06:36 AM

I'll be checking them this coming weekend.
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14smoke
Champion Author Birmingham

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Message Posted: Jan 7, 2013 12:19:42 PM

I check the tire pressure in my vehicle's in the driveway about once a month or so. Regularly, either way.
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WEPSMAN
Champion Author South Dakota

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Message Posted: Jan 7, 2013 12:04:19 PM

I always keep an eye on mine.
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