Last post on Feb 18, 2013 at 10:11 PM
You are in the Maintenance & Repair
What is this discussion about?
Tires, Wheels, Steering
Edmund's Feature Article: Tire Safety: Don't Ignore the Rubber on the Road
For dedicated winter tires, also have a look at the Snow/ice winter tires discussion topic.
#5283 of 7392 Re: trial [jipster]
Jan 24, 2006 (4:58 pm)
"When do new tires start to go "stale"...about a year?"
Tires are sensitive to heat and oxygen (especially in the form of ozone.) Properly stored tires can be almost as "fresh" in 3 years as they are the day the roll (Pun not intended!) out of the factory.
However, there is considerable research being developed that says that there is a finite life to tires even if they are unused. Some folks have suggested a limit of 6 years, and some have said 10 years, but these age limits are directed mostly at tires in service and mounted spares.
#5284 of 7392 Re: trial [capriracer]
Jan 24, 2006 (6:08 pm)
Do refrigerators in garages add to the ozone level in a closed garage enough to affect the life of a tire?
#5285 of 7392 Re: trial [imidazol97]
Jan 24, 2006 (8:31 pm)
The only way a refrigerator can add ozone is if its' electric motor had a comutator and sparked. All refrigeration units I've ever seen have been sealed units (motor sealed in with the pump) so no ozone is produced. I hope you're not referring to freon damaging the ozone layer? That's a completely different effect, and it -reduces- ozone.
#5286 of 7392 Re: trial [pathstar1]
Jan 25, 2006 (4:49 am)
Nope. I full understand the science. I had heard someone say that having a freezer or refrigerator in the garage caused ozone from the motor's operation. I thought the motors didn't have sparking so I posted to see if capriracer or someone would have facts on that.
Having power tools that do have sparking in the garage would be a minimal part of the time for most of us, so that shouldn't be a factor. Often the cars are outside when someone's using power tool in a typical garage.
#5287 of 7392 Re: trial [imidazol97]
Jan 25, 2006 (5:19 am)
I didn't think you could build an electric motor without a commutator, and if you have a commutator (and brushes), you're going to have sparks, and sparks produce ozone. ===> Therefore all elecric motors produce ozone. The only time this isn't a problem is when the motor is sealed inside a container.
I don't think an occasional use of a power tool in the garage is going to create a problem for tires. What would cause a problem is if the tires were stored next to an electric motor that ran frequently - like a furnace or air compressor.
#5288 of 7392 Re: tire size upgrade for an Accord [stickguy]
Jan 25, 2006 (6:51 am)
I am not an expert, but I have had a few cars now in 30 years of driving. This is IMO, so not the gospel. Before you change things, sometimes for the worse, evaluate you driving needs more.
Do you have a V-6 or 4 cylinder in that Accord??? Is this a 4 season or 3 season car??? Do you drive alot in the city or snow country where you either have potholes or road clearance issues. Is your car stick or auto??
This may influence your quest to temper your switch towards tire change first. Rather, I would submit to you, after answering the above questions, to start with the suspension changes and leave the tire/wheel changes till last. You will get much more bang for your buck, by changing struts, sway bar bushing or bars, than tire/wheel changes first.
I drive a 2002 Toyota Avalon XL with Tokico HP stuts and Energy Suspension bushing changes in the F/R sway bars and front control arms. The difference is remarkable. I have both 15 and 16 inch wheel/tire changes and although the 16" are more precise in transient response, the big bang for the buck was the struts. Lowering the car was not a consideration since this is a 4 season car, used in Northern NY through snow. I do change over to a 04 BMW 325ci Sports Suspension during the nice weather but that is never used in the snow/salt.
I would start with the suspension first. See how you like the changes, Then work on the tires if needed.
Hope that helps.
#5289 of 7392 Re: trial [capriracer]
Jan 25, 2006 (8:13 am)
They are powered by AC motors (two phase), most of which don't have commutators, though many smaller ones have an RPM activated switch to help them start. The AC field is "rotating" so no commutator is required - furnace fan motors, table saws, and larger electric fans are all examples. Hand power tools are an exception for many reasons but mainly they are a different design to get higher torque in a small size. They do have commutators, of course. Unless you were using the tools continuously I don't think the O3 they generate would build up enough to damage anything.
#5290 of 7392 check your spare
by steve_ HOST
Jan 29, 2006 (2:29 pm)
"Just because you haven't had a flat in 5 years doesn't mean your full-size spare will be ready to go the next time you need it. If you do have occasion to put an older spare on your SUV, make sure you take it to a tire shop as soon as you can. They'll be able to tell if you the tire is too old to provide safe and reliable service."
And you thought the Ford-Firestone thing was over... (The Driving Woman)
#5291 of 7392 Re: check your spare [steve_]
Jan 29, 2006 (2:35 pm)
With all the hoopla about tires over 5 years might not be good, I had already noted my tire's rubber aging on my last two that were 4 years old--not dry rot. But when it was time for the Scout Troop to take a long trip to a canoe camp in Canada, I noticed the spare tire they had used on the trailer showed aging. Couldn't find a date.
Turned out it was older than the DOT date stamp in an oval. I think the scout member father who works in a tire store said it was 1988. To think they were going to haul a 1000 lbs of baggage in a trailer behind a van on a tire that old. Thanks to the publicity about age, I thought more about that than I would have and pointed it out during the trailer cleanout.
#5292 of 7392 Re: check your spare [steve_]
Jan 29, 2006 (2:38 pm)
I would agree. If one does have a full sized spare it is more than wise to use it in the tire rotation.